Product Highlights

• 8" (203mm) Schmidt-Cassegrain OTA
• 2032mm Focal Length, f/10 Focal Ratio
• EdgeHD Aplanatic Field-Flattener Design
• StarBright XLT Optical Coating System
• Motorized Computer-Controlled EQ Mount
• NexStar+ GoTo Hand Controller
• 40,000+ Database, User-Defined Objects
• Multiple Alignment Procedures
• 40mm Eyepiece and 90° Star Diagonal
• 2" Steel Adjustable Tripod with Tray

• EdgeHD CG-5 8" f/10 Aplanatic Schmidt-Cassegrain Telescope (OTA Only)

  Engineered to deliver sharp and clear distortion-free views, the Celestron EdgeHD CG-5 8" f/10 Aplanatic Schmidt-Cassegrain Telescope is an ideal choice for observation, astrophotography, and imaging objects within or beyond our solar system. It features an aplanatic Schmidt-Cassegrain optical system consisting of a corrector plate, a spherical primary mirror, and a secondary mirror along with a set of field-flattening lenses integrated into the baffle tube. Complementing the EdgeHD system is the proprietary StarBright XLT optical coating system, which improves light transmission and reflectivity across the entire visual spectrum. The combination of EdgeHD and StarBright XLT produces bright and clear high-resolution images with true color rendition across the entire field of view without distortion, aberrations, or off-axis comas.

  Optimized for imaging, the internal focusing system features mirror support clutches to ensure proper alignment and mirror locks to avoid accidental defocusing during long-exposure astrophotography. The optical tube is outfitted with a standard 1.25" visual back to make it easier to find eyepiece, accessories, and imaging gear. For visual observations, a 1.25" star diagonal is included along with a 40mm Plössl eyepiece that yields 51x magnification. The EdgeHD 8" is offered here without a mount or tripod for users who already have a reliable support system and are looking to upgrade or add to their existing gear, but comes with a standard-sized CG-5 dovetail plate that is compatible with Vixen-style saddles.

  Optical Tube

  • 8" (203.2mm) aperture
  • f/10 focal ratio
  • 2032mm effective focal length
  • Aplanatic Schmidt-Cassegrain optical design
  • EdgeHD field-flattener aplanatic design eliminates spherical aberration, field curvature, and off-axis star coma to improve resolution, sharpness, and clarity across the entire field of view - especially at the edges
  • Diffraction-limited SCHOTT glass reduces internal light loss to improve color, clarity, and sharpness
  • StarBright XLT optical coatings
  • Flexible tension clutches hold the primary mirror in place to reduce image shift without putting any force or pressure on the mirror assembly, keeping subjects centered
  • Internal mirror locks prevent accidental adjustment to focus - important during long-exposure astrophotography
  • Integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror without dust getting in, to prevent mirror distortion due to uneven surface temperatures
  • Resolution: 0.69 arcsec (Rayleigh); 0.57 arcsec (Dawes)
  • Secondary mirror obstruction: 2.7" (69mm); 34% by diameter; 11% by area

  StarBright XLT System

  • Maximizes light transmission through optical path
  • Improves color rendition, contrast, sharpness, resolution, and brightness
  • Broadband system provides flat wavelength transmission across the entire visual spectrum
  • Multi-layer mirror coatings with layers of aluminum, SiO2 (quartz), and TiO2 (titanium dioxide)
  • Multi-layer anti-reflective corrector plate coatings with layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide). Hafnium has a wider band-pass than the commonly used titanium
  • High-transmission water white glass corrector plate limits light loss due to internal absorption

  Mounting

  • OTA only; mount and tripod required for proper use
  • Standard CG-5 (Vixen-style) dovetail plate

  Included Accessories

  Visual Back:

  • Standard SCT threads
  • 1.25" eyepiece/accessory holder
  • Use for prime focus or projection astrophotography with optional adapters

  Eyepiece:

  • Plössl lens configuration
  • 1.25" diameter barrel
  • Accepts most 1.25" eyepiece filters
  • 40mm focal length yields 51x power

  Diagonal:

  • 90° angle puts head in comfortable viewing position
  • Threaded for direct connection to OTA without the need for the visual back
  • 1.25" eyepiece/accessory holder
  • Star diagonal corrects image horizontally, but not vertically

  Finderscope:

  • Low 9x magnification preserves wide field of view to more easily find alignment or guide stars
  • Large 50mm aperture helps to see dimmer objects and stars for easier star-hopping navigation

  
  
• Advanced VX GoTo German Equatorial Mount

  Engineered and optimized for astrophotography with mid-sized optical tube assemblies, the Celestron Advanced VX GoTo German Equatorial Mount delivers the performance required for clear images through the use of dual-axis low-cog DC servo motors and backlash compensation. Added to this are encoders on the motors and Permanent Periodic Error Correction (PPEC) which help to improve positioning and tracking precision and ensure your target object stays centered for long-exposure photography techniques. Supporting the mount is a large 2" stainless steel tripod that has a wide stance for stability on most terrain, and a center tray that holds 1.25" and 2" eyepieces and accessories and acts as a leg-lock to further stabilize while helping to minimize vibrations.

  The brain of the system is the NexStar+ computer controller which is equipped with a database of over 40,000 objects, including the planets, stars, nebulae, galaxies, and the complete Messier catalog; it can also be programmed with up 100 custom user-defined objects with filters to create custom object lists. Its intuitive menu-driven user interface makes observing the heavens fast and easy; features such as guided tours, extended information on 200 popular objects, and multiple alignment options make the NexStar+ controller an invaluable tool to new users and experienced star-gazers alike.

  Advanced VX Mount

  • 30-pound payload capacity
  • Dual-axis low-cog DC servo motors
  • Dual motor encoders improve tracking and location accuracy with reduced vibrations
  • 7-77° latitude range
  • Uninterrupted tracking below meridian to enable observation from a raised location such as a balcony or hilltop
  • Integrated 12" counterweight bar with one 12-pound counterweight
  • Vixen-style CG-5 dovetail saddle

  NexStar+ Hand Controller

  • 40,000+ object database
  • 100 user-defined programmable celestial or terrestrial objects
  • Enhanced information on over 200 objects
  • Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, 0.3°/sec, 32x, 16x, 8x, 4x, 2x
  • Three tracking rates: Sidereal, Solar, Lunar
  • Multiple alignment procedures: Two-star, One-star, Solar system, Quick-align, Last-align
  • Sky Tour Mode: System seeks out the best objects for the date and time, and automatically slews to them
  • Identify Mode: Use to identify an unknown object in the field of view, or to find other celestial objects that are close to where the user is viewing
  • Anti-backlash compensation: Trains out the intrinsic play between gears for more precise slewing and tracking
  • Permanent Periodic Error Correction (PPEC): System learns its internal tracking errors and improves over time for more precise tracking, requiring fewer corrections
  • Built-in instructions guide you through the alignment procedures
  • 4-line, 18-character LCD display with a 19-button fiber-optic backlit LED keypad
  • RS-232 comm port
  • Supports English, French, Italian, German, and Spanish

  Database details:
  • Solar system: Seven planets, Moon, Sun, and Pluto
  • Custom lists of all the brightest stars, double stars, variable stars, and asterisms
  • Custom lists of galaxies, nebulae, and clusters, as well as the complete Messier catalog and select NGC objects

  Tripod

  • Tubular stainless steel legs
  • 2" leg diameter
  • 44-64" height adjustment range
  • Center tray holds 1.25" and 2" eyepieces, and locks legs in-place for greater stability and vibration reduction
  • Removable hand controller holder can be moved to avoid cord-wrap during long observation sessions
  • Weight: 18-pounds

Specifications

Product Highlights

• 11" Aplanatic Schmidt-Cassegrain
• 2800mm Focal Length, f/10 Focal Ratio
• 23mm Eyepiece, 90° Star Diagonal
• Motorized EQ Mount, 55-lb Payload
• NexStar+ Computer Hand Controller
• 40,000-Object Database
• Guided Tours and Custom Object Filters
• Backlash Compensation and PPEC
• 9x50 Finderscope
• 2" Stainless Steel Tripod

Introducing the EdgeHD Telescope Series, Celestron’s dependable flagship telescope line- fused to their CGX Mount, the newest and greatest in German Equatorial mounts. With a proven telescope to mount atop it, the CGX is sure to provide you with some of the finest astronomical experiences you've had to date! Featuring Celestron's premium StarBright XLT coatings and 11" of aperture, this telescope gives you the brightest, clearest views whether observing planetary or deep-sky objects.

The CGX mount is the newest member of Celestrons fully computerized Equatorial mount series capable of carrying Celestron’s high-end 11" and 14" optical tubes. The CGE PRO style, 2.75" leg tripod holds even our 14" optics securely while dampening vibration, which is ideal for both imaging and visual observing. Capable of holding 55 lbs of payload and slewing at 5° per second, you will be able to instantly point to any of the celestial objects in the database.

German Equatorial mounts are recognized for their rock solid stability, simple balancing and easy accessibility for attaching accessories- and the CGX takes it to the next level after years of study and hard work. With sophisticated software features like the Hibernate function, the CGX can maintain its star alignment night after night without needing to be re-aligned, making it an excellent choice for a permanent observatory facility.

The Celestron CGX Mount is an innovative new design that improves on it's predesscors in every imaginable way. It's the product of over three years of innovative design and planning, and it shows. It's

Ergonomic Design - The Celestrom CGX mount is incredibly ergonomic, from the convenient carrying handles to the easy to use and turn knobs.

Splendid Engineering- This mount boasts drastically reduced backlash and improved stability. Incredibly rigid, this mount also boasts an improved motor system that greatly boosts the provided torque. It's simply superior to it's predesscors in every way.

Innovation - The Celestron CGX series boasts internal cabling that utterly bypasses the issue of cable twisting or tangling by letting you route all your own power supply and accessory cables into a convenient port on a part of the mount that moves- from which they enter into the mount, utterly contained, and reach everywhere they need to on the inside without any tangling issues. Neat and clean!

Performance - For objects near the Meridian (imaginary line passing from North to South), the Celestron CGX mount will track a full 20 degrees past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGX mount has a robust database with over 40,000 objects, utilizing a top quality Nexstar hand controller.

New Optical Design - The EdgeHD optical system takes all of the compact power popularized by the Schmidt Cassegrain Telescope (SCT) and combines it with an improved high definition optical system for wide field, astrograph quality images. As a visual instrument, EdgeHD optics deliver pinpoint images even with your widest field eyepiece. You can search for all of the Messier Catalog objects, and see hundreds of other equally interesting NGC, IC and Caldwell objects with amazing clarity. For astroimaging, the EdgeHD optics produce aberration-free images across your favorite CCD or DSLR camera. All EdgeHD optics are designed to produce an extremely flat focal plane precise enough to match the strict tolerances of the largest commercial CCD detectors, allowing all stars to be in tight focus to the very edge of the chip.

Diffraction Limited - Some companies boast that their telescopes give diffraction limited stars in the very center of the field of view. EdgeHD optics not only produce diffraction limited stars on axis, but maintain diffraction limited stars across the entire field of view of many of the most popular astrophotography cameras.

Mirror Locks – To hold the mirror in place and reduce image shift during imaging.

Tube Vents - Each vent has an integrated 60 micron micro-mesh filter allowing hot air to be released from behind the primary mirror.

Fastar Versatility – All EdgeHD optical tubes are equipped with a removable secondary mirror for fast f/2 CCD imaging. Not only does imaging in the FASTAR configuration allow for exposure times that are 25 times faster than at f/10, but also yields a field of view five times wider. The perfect combination for imaging your favorite wide field objects in a fraction of the time. (FASTAR imaging requires a third party lens assembly in place of the secondary mirror).

82° Eyepiece - EdgeHD 11" optical tubes come with Celestron's top of the line 2" barrel eyepiece. With a 23 mm focal length and 82° AFOV, you get an incredible combination of power and wide field of view. Plus this 6-element eyepiece is optimized to deliver pinpoint images when used with a flat field telescope.

Celestron's bleeding edge new CGX mount is the current pinnacle of German Equatorial Mount Engineering. Boasting a wide range of new and improved features, this mount is simply top quality. It's just plain better than it's competition and predecessors.

Superior mount performance combined with superior edge performance not only creates rounder, more pleasing stars but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. When it comes to the Celestron HD series coupled with Celestron’s StarBright XLT coating group on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum... It's a vision you'll never forget.

Specifications

• EdgeHD 11" f/10 Aplanatic Schmidt-Cassegrain Telescope (OTA Only)

  Optical Design	Aplanatic Schmidt-Cassegrain
  Aperture	11.0" / 279.4mm
  Focal Length	2800mm
  Focal Ratio	f/10
  Eyepiece Barrel Diameter	2.0" 1.25" with included reducer
  Diagonal	90° star 2" snout and eyepiece holder
  Finderscope	9x50
  Tripod	None
  Mount Type	CGE dovetail plate Compatible with Losmandy-style saddles
  Power Source	None
  Optical Tube Length	24.0" / 61.0 cm
  Weight	28.0 lb / 12.7 kg

  Packaging Info
  Box Dimensions (LxWxH)	30.0 x 19.0 x 18.0"

• CGX GoTo EQ Mount with Tripod

  Mount Type	Equatorial
  Load Capacity	55.0 lb / 24.9 kg
  Motor	Dual-axis servo with heavy-duty belt-drive system
  GoTo Capability	Yes, NexStar+ hand controller
  Latitude Adjustment Range	3 - 65°
  Polar Axis Scope	None
  Tripod	Adjustable height of 47.25 - 77.5" / 120 - 197 cm, including head Stainless steel 2"-diameter legs
  Power Source	12 VDC, 4 A
  Weight	Mount head: 44.0 lb / 20.0 kg Tripod: 19.2 lb / 8.7 kg

  Packaging Info
  Box Dimensions (LxWxH)	46.5 x 13.8 x 13.0"

• 11 lb Counterweight for Advanced VX

  Packaging Info
  Box Dimensions (LxWxH)	11.4 x 9.75 x 4.35"

• 9.25" Aplanatic Schmidt-Cassegrain OTA
• 2350mm Focal Length, f/10 Focal Ratio
• StarBright XLT Optical Coating System
• 2" Diagonal and 23mm Eyepiece
• CGX Motorized GoTo Mount, 55-lb Payload
• NexStar+ Computer Hand Controller
• 40,000-Object Database
• Multiple Alignment Processes
• Guided Tours and Custom Object Filters
• 2" Stainless Steel Tripod

HD Features

• Experience our best optical performance with EdgeHD’s ?at-?eld and coma-free optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces
• Aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging
• Versatile design accommodates 2 focal ratios: native f/10 or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories

Computerized Mount Features

• All-new design. Sturdier and more rigid with quicker dampening time
• Increased load capacity to 55 lbs.
• Improved motors provide more torque, better slewing and tracking under heavy loads
• Heavy Duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads
• Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh
• Internal cabling for worry-free remote operation. Power input and accessory ports remain stationary while the mount slews to avoid snags
• Internal hard stops for both axes prevents cable tension and tripod strike
• Internal optical sensors on both axes for simple and safe remote operation
• Home sensors allow the mount to always start in the index position regardless of orientation before a power reset
• Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe
• Brand new control software developed in conjunction with PlaneWave Instruments for professional level control operation and imaging
• Software includes multi-point mount modeling for extremely precise pointing accuracy and many more additional features for remote astroimaging
• Wider tripod stance for improved stability
• Adjustable EQ head position to optimize center of gravity over the tripod and fully utilize the increased 3º-65º latitude range
• Dual-fit CG-5/Vixen and CGE/Losmandy dovetail saddle

Improved tripod includes:

• 2" steel legs with height index marks for quick leveling
• "Jack of all trays" can hold three 1.25" eyepieces, two 2" eyepieces, your smartphone, or other accessories
• +20º of additional tracking past the meridian on either side
• Tripod legs can be collapsed with accessory tray installed for faster setup and transport

Improved ergonomics:

• Two handles for easy pickup and transport
• All-new ergonomically designed dovetail clamping knobs
• Innovative and improved polar alignment adjustment system
• All-new ergonomic latitude adjuster for smooth and easy adjustment under full loads
• Optional add-on polar axis finderscope - coming soon

Electronics:

• All-new NexStar+ hand control with USB port
• Two AUX accessory ports to support wireless/WiFi alignment and operation with StarSense AutoAlign and SkyPortal WiFi Module accessories (sold separately)
• USB 2.0 port, used to connect directly to PC with included software
• Autoguider port
• PPEC ready
• Threaded 12VDC power input barrel connector
• Internal Real Time Clock (keeps time and site information saved)

Introducing the EdgeHD Telescope Series, Celestron’s new flagship telescope line... fused to their CGX Mount, the newest and greatest in German Equatorial mounts. With a proven telescope to mount atop it, the CGX is sure to provide you with some of the finest astronomical experiences you've had to date!

The EdgeHD is by now a well proven and tested brand, with it's quality well assured by thousands of satisfied customers.. and Celestron has chosen to pair it with their amazing new CGX mount! This mount is years in the making, and is the by-product of years of thought and planning on how to redesign the very concept of a German Equatorial mount from the ground up and the top down!

The Edge HD is Celestron’s latest innovation that will surely be the system of choice for the serious astro-imagers. The new Edge High Definition telescope series features an Aplanatic Schmidt optical system that produces pinpoint star images all the way to the edge of the field. Some optical systems currently on the market may produce coma free images. But there is a difference.... the optical difference. Not only is the Celestron Edge coma free, but it also has a built in field flattener to ensure sharp focus all the way to the edge of the field, producing true Astrograph quality images. This results in pinpoint, High Definition star images throughout your astro photograph.

These superior features combined with Celestron's recently introduced and cutting edge CGX mounts make the new Celestron EdgeHD series the new gold standard in Astro Imaging. The Edge HD is an aplanatic Schmidt telescope designed to produce aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma, but also to give an astrograph quality flat focal plane all the way to the edge of the field of view. Once again, Celestron sets the benchmark!

Many optical designs that advertise themselves as “astrograph” quality actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for visual observing, stars will appear out of focus at the edge when used with a flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope and dramatically flatter than other competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.

Now let's talk about Celestron quality...

The Celestron CGX Mount is an innovative new design that improves on it's predesscors in every imaginable way.

Ergonomic Design - The Celestrom CGX mount is incredibly ergonomic, from the convenient carrying handles to the easy to use and turn knobs.

Splendid Engineering- This mount boasts drastically reduced backlash and improved stability. Incredibly rigid, this mount also boasts an improved motor system that greatly boosts the provided torque. It's simply superior to it's predecessors in every way.

Innovation - The Celestron CGX series boasts internal cabling that utterly bypasses the issue of cable twisting or tangling by letting you route all your own power supply and accessory cables into a convenient port on a part of the mount that moves- from which they enter into the mount, utterly contained, and reach everywhere they need to on the inside without any tangling issues. Neat and clean!

Performance - For objects near the Meridian (imaginary line passing from North to South), the Celestron CGX mount will track a full 20 degrees past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGX mount has a robust database with over 40,000 objects, utilizing a top quality Nexstar hand controller.

Celestron's bleeding edge new CGX mount is the current pinnacle of German Equatorial Mount Engineering. Boasting a wide range of new and improved features, this mount is simply top quality. It's just plain better than it's competition and predecessors.

Superior mount performance combined with superior edge performance not only creates rounder, more pleasing stars but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. When it comes to the Celestron HD series coupled with Celestron’s StarBright XLT coating group on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum... It's a vision you'll never forget.

Specifications

Optical Tube Info:

• 8" Aplanic Schmidt-Cassegrain OTA
• 2032mm Focal Length, f/10 Focal Ratio
• StarBright XLT Optical Coating System
• 1.25" Diagonal and 40mm Eyepiece
• CGX Motorized GoTo Mount, 55-lb Payload
• NexStar+ Computer Hand Controller
• 40,000-Object Database
• Multiple Alignment Processes
• Guided Tours and Custom Object Filters
• 2" Stainless Steel Tripod

HD FEATURES

• Experience our best optical performance with EdgeHD’s ?at-?eld and coma-free optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces
• Aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging
• Versatile design accommodates 2 focal ratios: native f/10 or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories

Computerized Mount Features

• All-new design. Sturdier and more rigid with quicker dampening time
• Increased load capacity to 55 lbs.
• Improved motors provide more torque, better slewing and tracking under heavy loads
• Heavy Duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads
• Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh
• Internal cabling for worry-free remote operation. Power input and accessory ports remain stationary while the mount slews to avoid snags
• Internal hard stops for both axes prevents cable tension and tripod strike
• Internal optical sensors on both axes for simple and safe remote operation
• Home sensors allow the mount to always start in the index position regardless of orientation before a power reset
• Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe
• Brand new control software developed in conjunction with PlaneWave Instruments for professional level control operation and imaging
• Software includes multi-point mount modeling for extremely precise pointing accuracy and many more additional features for remote astroimaging
• Wider tripod stance for improved stability
• Adjustable EQ head position to optimize center of gravity over the tripod and fully utilize the increased 3º-65º latitude range
• Dual-fit CG-5/Vixen and CGE/Losmandy dovetail saddle

Improved tripod includes:

• 2" steel legs with height index marks for quick leveling
• "Jack of all trays" can hold three 1.25" eyepieces, two 2" eyepieces, your smartphone, or other accessories
• +20º of additional tracking past the meridian on either side
• Tripod legs can be collapsed with accessory tray installed for faster setup and transport

Improved ergonomics:

• Two handles for easy pickup and transport
• All-new ergonomically designed dovetail clamping knobs
• Innovative and improved polar alignment adjustment system
• All-new ergonomic latitude adjuster for smooth and easy adjustment under full loads
• Optional add-on polar axis finderscope - coming soon

Electronics:

• All-new NexStar+ hand control with USB port
• Two AUX accessory ports to support wireless/WiFi alignment and operation with StarSense AutoAlign and SkyPortal WiFi Module accessories (sold separately)
• USB 2.0 port, used to connect directly to PC with included software
• Autoguider port
• PPEC ready
• Threaded 12VDC power input barrel connector
• Internal Real Time Clock (keeps time and site information saved)

Introducing the EdgeHD Telescope Series, Celestron’s dependable flagship telescope line- fused to their CGX Mount, the newest and greatest in German Equatorial mounts. With a proven telescope to mount atop it, the CGX is sure to provide you with some of the finest astronomical experiences you've had to date!

The EdgeHD is by now a well proven and tested brand, with it's quality well assured by thousands of satisfied customers.. and Celestron has chosen to pair it with their amazing new CGX mount! This mount is years in the making, and is the by-product of years of thought and planning on how to redesign the very concept of a German Equatorial mount from the ground up and the top down!

The EdgeHD is Celestron’s latest innovation that will surely be the system of choice for the serious astro-imagers. The new Edge High Definition telescope series features an Aplanatic Schmidt optical system that produces pinpoint star images all the way to the edge of the field. Some optical systems currently on the market may produce coma free images. But there is a difference.... the optical difference. Not only is the Celestron Edge coma free, but it also has a built in field flattener to ensure sharp focus all the way to the edge of the field, producing true Astrograph quality images. This results in pinpoint, High Definition star images throughout your astro photograph.

These superior features combined with Celestron's recently introduced and cutting edge CGX mounts make the new Celestron EdgeHD series the new gold standard in Astro Imaging. The Edge HD is an aplanatic Schmidt telescope designed to produce aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma, but also to give an astrograph quality flat focal plane all the way to the edge of the field of view. Once again, Celestron sets the benchmark!

Many optical designs that advertise themselves as “astrograph” quality actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for visual observing, stars will appear out of focus at the edge when used with a flat chip sensor of a digital camera. Edge HD optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope and dramatically flatter than other competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.

Now let's talk about Celestron quality...

The Celestron CGX Mount is an innovative new design that improves on it's predesscors in every imaginable way.

Ergonomic Design - The Celestrom CGX mount is incredibly ergonomic, from the convenient carrying handles to the easy to use and turn knobs.

Splendid Engineering- This mount boasts drastically reduced backlash and improved stability. Incredibly rigid, this mount also boasts an improved motor system that greatly boosts the provided torque. It's simply superior to it's predecessors in every way.

Innovation - The Celestron CGX series boasts internal cabling that utterly bypasses the issue of cable twisting or tangling by letting you route all your own power supply and accessory cables into a convenient port on a part of the mount that moves- from which they enter into the mount, utterly contained, and reach everywhere they need to on the inside without any tangling issues. Neat and clean!

Performance - For objects near the Meridian (imaginary line passing from North to South), the Celestron CGX mount will track a full 20 degrees past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGX mount has a robust database with over 40,000 objects, utilizing a top quality Nexstar hand controller.

• 8” EdgeHD optics
• CGEM II computerized equatorial mount
• Celestron’s premium StarBright XLT coatings provide maximum light transmission
• A 9x50 finderscope, 1.25” mirror diagonal for more comfortable viewing, and 1.25” 40 mm Plössl eyepiece are all included

EdgeHD FEATURES

• EdgeHD aplanatic, flat field SCT optics for pinpoint stars to the edge of the largest imaging sensors and widest eyepieces. Lightweight and portable
• Aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging
• Versatile design accommodates 3 focal ratios: native f/10, f/7 with the addition of a focal reducer, or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories

COMPUTERIZED MOUNT FEATURES

• 40 lbs payload capacity
• Dual-fit Vixen/CG-5 and Losmandy/CGE dovetail saddle
• 2" steel legs with height index marks for quick leveling
• USB 2.0 port on hand control for direct links to a PC via ASCOM supported software.
• 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
• Internal cabling throughout for worry-free remote operation
• Low cog DC Servo motor with integrated optical encoders offer smooth, quiet operation
• Able to track past the meridian allowing seamless imaging
• Permanent periodic error corrections allow users to train out the worm gears periodic errors once, while the mount retains the PEC recordings.
• Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits
• Built-in polar alignment program to polar align on any star in the sky
• Longer clutch levers to make tightening and loosening of clutches easier
• Custom database lists of all the most famous deep-sky objects by name and catalog number
• Solar System alignment method allows to view the moon and planets during the day
• Permanent Programmable Periodic Error Correction (PEC) corrects periodic tracking errors inherent to all worm drives
• Custom Rate 9 feature allows to set maximum slew rate
• Tandem mode allows to star align the mount even when positioned for tandem scope use
• RS-232 communication port on hand control to control the telescope via a personal computer
• Includes NexRemote telescope control software, for advanced control of telescope via computer
• Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings
• GPS-compatible with optional SkySync GPS Accessory

Introducing the EdgeHD Telescope Series, Celestron’s new flagship telescope line... and the CGEM-II, Celestrons new 'GEM' of a mount!

Celestron has taken another bold step as the market leader in telescopes with the introduction of their latest series of high-end telescopes. Since the moment they first started producing Schmidt Cassegrain optical systems, Celestron has continued to design high-quality optics with pride. After years of research and development, they have now taken one giant step!

The EdgeHD is Celestron’s latest innovation that will surely be the system of choice for the serious astro-imagers. The new Edge High Definition telescope series features an Aplanatic Schmidt optical system that produces pinpoint star images all the way to the edge of the field. Some optical systems currently on the market may produce coma free images. But there is a difference.... the optical difference. Not only is the Celestron Edge coma free, but it also has a built in field flattener to ensure sharp focus all the way to the edge of the field, producing true Astrograph quality images. This results in pinpoint, High Definition star images throughout your astro photograph.

These superior features combined with Celestron's recently introduced CGE Pro and CGEM mounts make the new Celestron EdgeHD series the new gold standard in Astro Imaging. The Edge HD is an aplanatic Schmidt telescope designed to produce aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma, but also to give an astrograph quality flat focal plane all the way to the edge of the field of view.

Many optical designs that advertise themselves as “astrograph” quality actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for visual observing, stars will appear out of focus at the edge when used with a flat chip sensor of a digital camera. Edge HD optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope and dramatically flatter than other competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.

Now let's talk about Celestron quality...

The Celestron CGEM-II mount has a fresh, attractive, bold appearance and is capable of carrying Celestron’s higher-end SCT optical tubes (up to 11") securely and vibration free which is ideal for both imaging and visual observing.

Ergonomic Design - The Celestrom CGEM-II mount was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up.

Innovation - The Celestron CGEM-II series has a new innovative Polar alignment procedure called All-Star (patent pending). All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM-II, sure to please astroimagers, is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings. Furthermore, the new model of mount is equipped with a dual saddle capable of mounting both predominant kinds of Dovetail.

Performance - For objects near the Meridian (imaginary line passing from North to South), the Celestron CGEM-II mount will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM-II mount has a robust database with over 40,000 objects, 400 user defined programmable objects and enhanced information on over 200 objects.

Celestron's CGEM-II mount is the next level of GEM mounting, an all around improvement to their previous CGEM model with more to it than just a new paintjob and a saddle!

Optical Tube Info:

In the Box

• 9.25" Schmidt-Cassegrain Optical Tube Assembly
• Celestron's premium StarBright XLT coatings
• 2350 mm focal length (f/10)
• 25 mm eyepiece included (94x)
• Visual back allows for use with 1.25" accessories
• 6x30 finderscope to help accurately center alignment objects
• Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
• Includes large CGE style dovetail mounting bar

COMPUTERIZED MOUNT FEATURES

• 40 lbs payload capacity
• Dual-fit Vixen/CG-5 and Losmandy/CGE dovetail saddle
• 2" steel legs with height index marks for quick leveling
• USB 2.0 port on hand control for direct links to a PC via ASCOM supported software
• 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
• Internal cabling throughout for worry-free remote operation
• Low cog DC Servo motor with integrated optical encoders offer smooth, quiet operation
• Able to track past the meridian allowing seamless imaging
• Permanent periodic error corrections allow users to train out the worm gears periodic errors once, while the mount retains the PEC recordings.
• Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits
• Built-in polar alignment program to polar align on any star in the sky
• Longer clutch levers to make tightening and loosening of clutches easier
• Custom database lists of all the most famous deep-sky objects by name and catalog number
• Solar System alignment method allows to view the moon and planets during the day
• Custom Rate 9 feature allows to set maximum slew rate
• Tandem mode allows to star align the mount even when positioned for tandem scope use
• USB hand control to control the telescope via a personal computer
• Includes NexRemote telescope control software, for advanced control of telescope via computer
• Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings
• GPS-compatible with optional SkySync GPS Accessory

Some 40 years ago, Celestron founder - Tom Johnson - introduced the first Celestron Schmidt-Cassegrain telescopes into the amateur astronomy market and began a revolution. Now, Celestron's CGEM-II-925 takes performance to a new level beginning with the extreme optical quality of the 9.25" Schmidt Cassegrian combined with Starbright XLT coatings mounted on Celestron's newly engineered and innovative CGEM-II mount. This new take on a tried and true design has given the world another Celestron "classic" - one capable of carrying the load securely and vibration free... and taking both astro imaging and visual observing to new heights.

With a telescope capable of gathering 1127X more light than the human eye, the precise f/10 optics of the Celestron C925 SCT offer up an incredible 0.49 arc seconds of resolution spread out over a 0.53° angular field of view. With a limiting magnitude factor of 14 and a practical magnification limit of 555X, we're talking about a telescope able to deliver remarkable planetary and lunar views. When sky permits, you can expect to see details like delicate divisions in Saturn's ring structure, details on Mars and follow Jupiter events like shadow transits and Great Red Spot appearances with ease. Star clusters will transform into well-resolved facets, galaxies will take on structure and difficult double stars will yield their companions. With a low end magnification limit of 34X, just add a wide field eyepiece, or open both eyes wide with Celestron Stereo Binocular Viewers and enjoy panoramic vistas of extended nebulae and sweep the heavens for every last photon!

What sets the 9.25" Celestron CGEM-II apart from competitor models is simplicity and durability. The 9.25" CGEM-II was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy procedures and adjustments. The intuitive All-Star system allows users to choose any bright star from the NexStar hand control, while the software calculates and assists with polar alignment. Then, just kick back and enjoy. The CGEM-II-925 database will provide over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects for your celestial viewing pleasure.

But it's more than just to "GoTo" functions which will make the Celestron CGEM-II-925 SCT telescope one of the most worthy optical investments you'll ever consider... It's the design qualities which make this telescope last that count. Unlike less expensive models, the Celestron CGEM-II Schmidt-Cassegrain mechanism that moves the primary mirror to adjust focus is supported by two pre-loaded ball bearings, minimizing the "mirror flop" typical of bushing focus mechanisms. There's nothing to get dragged or snagged during set-up or transportation because the RA and Dec motor wiring is all internal. The drive incorporates a low cog DC Servo motor with integrated optical encoders which ensure smooth, quiet operation and long life... a the motor armatures are skewed to minimize cogging which is required for low speed tracking. Precision machined 40mm diameter steel polar shafts are supported by multiple tapered roller bearings and ball bearings while the mount utilizes a steel worm gear and 90mm pitch diameter brass worm wheel. Even a secure power plug is employed, so the mount's 12V DC 1.5 Amp power source can't be accidentally disconnected. The Celestron CGEM-II-925 comes equipped with a car battery adapter, but you'll find this telescope so fascinating you might just want to add a AC adapter or Celestron Power Tank, too! Furthermore, the dual plate design allows you to choose between the CGE-Pro or CG-5 style dovetails, meaning that you can freely utilize a much wider range of scopes and accessories in conjunction with this mount!

• 11“ EdgeHD optics
• CGEM II computerized equatorial mount
• Celestron’s premium StarBright XLT coatings provide maximum light transmission
• A 9x50 finderscope, 2” mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all included

EdgeHD FEATURES

• EdgeHD aplanatic, flat field SCT optics for pinpoint stars to the edge of the largest imaging sensors and widest eyepieces. Lightweight and portable
• Aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging
• Versatile design accommodates 3 focal ratios: native f/10, f/7 with the addition of a focal reducer, or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories

COMPUTERIZED MOUNT FEATURES

• 40 lbs payload capacity
• Dual-fit Vixen/CG-5 and Losmandy/CGE dovetail saddle
• 2" steel legs with height index marks for quick leveling
• USB 2.0 port on hand control for direct links to a PC via ASCOM supported software.
• 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
• Internal cabling throughout for worry-free remote operation
• Low cog DC Servo motor with integrated optical encoders offer smooth, quiet operation
• Able to track past the meridian allowing seamless imaging
• Permanent periodic error corrections allow users to train out the worm gears periodic errors once, while the mount retains the PEC recordings.
• Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits
• Built-in polar alignment program to polar align on any star in the sky
• Longer clutch levers to make tightening and loosening of clutches easier
• Custom database lists of all the most famous deep-sky objects by name and catalog number
• Solar System alignment method allows to view the moon and planets during the day
• Custom Rate 9 feature allows to set maximum slew rate
• Tandem mode allows to star align the mount even when positioned for tandem scope use
• USB hand control to control the telescope via a personal computer
• Includes NexRemote telescope control software, for advanced control of telescope via computer
• Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings
• GPS-compatible with optional SkySync GPS Accessory

Introducing the EdgeHD Telescope Series, Celestron’s new flagship telescope line...

Celestron has taken another bold step as the market leader in telescopes with the introduction of their latest series of high-end telescopes. Since the moment they first started producing Schmidt Cassegrain optical systems, Celestron has continued to design high-quality optics with pride. After years of research and development, they have now taken one giant step!

The Edge HD is Celestron’s latest innovation that will surely be the system of choice for the serious astro-imagers. The new Edge High Definition telescope series features an Aplanatic Schmidt optical system that produces pinpoint star images all the way to the edge of the field. Some optical systems currently on the market may produce coma free images. But there is a difference.... the optical difference. Not only is the Celestron HD coma free, but it also has a built in field flattener to ensure sharp focus all the way to the edge of the field, producing true Astrograph quality images. This results in pinpoint, High Definition star images throughout your astro photograph.

These superior features combined with our recently introduced CGX and CGEM-II mounts make the new Celestron Edge series the new gold standard in Astro Imaging. The EdgeHD is an aplanatic Schmidt telescope designed to produce aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma, but also to give an astrograph quality flat focal plane all the way to the edge of the field of view.

Many optical designs that advertise themselves as “astrograph” quality actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for visual observing, stars will appear out of focus at the edge when used with a flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope and dramatically flatter than other competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.

Now let's talk about Celestron quality...

The Celestron CGEM-II mount has a fresh, attractive, bold appearance and is capable of carrying Celestron’s higher-end SCT optical tubes (up to 11") securely and vibration free which is ideal for both imaging and visual observing.

Ergonomic Design - The Celestrom CGEM-II mount was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up.

Innovation - The Celestron CGEM-II series has a new innovative Polar alignment procedure called All-Star (patent pending). All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM 91526, sure to please astroimagers, is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings. Furthermore, a new dual saddle has resulted in this stellar mount having the capacity to mount either CGE-Pro style Dovetails or CGE-5 Dovetails.

Performance - For objects near the Meridian (imaginary line passing from North to South), the Celestron CGEM mount will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM 91526 mount has a robust database with over 40,000 objects, 400 user defined programmable objects and enhanced information on over 200 objects.

Celestron's CGEM-II mount is the perfect fit between the Advanced Series and CGE Series. Offering the portability of the Advanced Series and the precision of the CGE.

Superior mount performance combined with superior edge performance not only creates rounder, more pleasing stars but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. When it comes to the Celestron HD series coupled with Celestron’s StarBright XLT coating group on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum... It's a vision you'll never forget.

Optical Tube Info:

• 9.25" Aplanatic Schmidt-Cassegrain
• 23500mm Focal Length, f/10 Focal Ratio
• 23mm Eyepiece, 90° Star Diagonal
• Motorized EQ Mount, 75-lb Payload
• NexStar+ Computer Hand Controller
• 40,000-Object Database
• Guided Tours and Custom Object Filters
• Backlash Compensation and PPEC
• 9x50 Finderscope
• 2.75" Stainless Steel Tripod

• 11" Aplanatic Schmidt-Cassegrain
• 2800mm Focal Length, f/10 Focal Ratio
• 23mm Eyepiece, 90° Star Diagonal
• Motorized EQ Mount, 75-lb Payload
• NexStar+ Computer Hand Controller
• 40,000-Object Database
• Guided Tours and Custom Object Filters
• Backlash Compensation and PPEC
• 9x50 Finderscope
• 2.75" Stainless Steel Tripod

Celestron CGX-L Stainless Steel Telescope Tripod

Specifications

• CGX-L GoTo EQ Mount with Tripod

  Mount Type	Equatorial
  Load Capacity	75.0 lb / 34.0 kg, excluding counterweights
  Motor	Dual-axis servo motors Heavy-duty belt-drive system Digital optical encoders
  GO-TO Capability	Yes, NexStar+ hand controller
  Latitude Adjustment Range	3 - 65°
  Polar Axis Scope	None
  Tripod	Adjustable height from 35.75 - 52.75" / 90.8 - 134.0 cm Stainless steel Leg diameter: 2.75" / 7.0 cm
  Power Source	12 VDC, 3 A
  Weight	Mount head: 52.6 lb / 23.9 kg Tripod: 46.2 lb / 21.0 kg

• CGE PRO Counterweight - 22 lb

  Packaging Info
  Box Dimensions (LxWxH)	10.4 x 9.6 x 5.6"

• 14" Aplanatic Schmidt-Cassegrain
• 2910mm Focal Length, f/11 Focal Ratio
• 2" 23mm Eyepiece, 90° Star Diagonal
• Motorized EQ Mount, 75-lb Payload
• NexStar+ Computer Hand Controller
• 40,000-Object Database
• Guided Tours and Custom Object Filters
• Backlash Compensation and PPEC
• 9x50 Finderscope
• 2.75" Stainless Steel Tripod

The 9.25” EdgeHD Advanced VX (AVX) telescope is a specialized instrument designed for astrograph-quality images that sets a new standard in mid-level telescopes. With its EdgeHD optical tube and the sturdy Advanced VX equatorial mount and tripod, this kit provides unparalleled views of the planets, up-close views of the lunar surface (including craters and maria), and stunning deep sky images.

EdgeHD Optical Design

EdgeHD is an aplanatic, flat field Schmidt optical system that produces aberration-free images across a wide visual and photographic field of view. The optical system reduces more than just off-axis star coma; it provides an astrograph-quality flat focal plane all the way to the edge of the field of view.