Celestron CGEM - 925 Computerized Telescope

Celestron CGEM - 1100 Computerized Telescope

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Your Price: CAD6,133.42

Retail Price:CAD6,440.09

Your Savings:CAD306.67(5%)

Part Number: 11099

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Description

Key Technologies

StarBright XLT, Flash Upgradeable, NexRemote, All-star Polar Alignment

Quick Overview

General Features

11" Schmidt-Cassegrain telescope
CGEM Computerized Equatorial Mount
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
Celestron's premium StarBright XLT coatings
9x50 finderscope to help accurately find objects
Ultra sturdy 2" steel tripod with Accessory Tray
Star diagonal provides more comfortable viewing position when observing objects that are high in the sky

Computerized Mount Features

40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
Proven NexStar computer control technology
Redesigned electronics deliver constant regulated power to the motors making them capable of driving the telescope even when not perfectly balanced
New "All-star" Polar alignment uses any bright star for a quick and accurate Polar alignment
Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures
Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
Meridian preference for slewing - allows you to approach an object from the side of the Meridian that maximizes tracking (and imaging) time
Solar System alignment method - allows you to align your telescope and view the moon and planets during the day
Custom Rate 9 feature allows you set maximum slew rate
Tandem mode allows you to star align the mount even when positioned for tandem scope use
Custom database lists of all the most famous deep-sky objects by name and catalog number: the most beautiful double, triple and quadruple stars; variable stars; solar system objects and asterisms
Permanent Programmable Periodic Error Correction (PEC) - corrects for periodic tracking errors inherent to all worm drives
Drive Motors - Low Cog DC Servo motor with integrated optical encoders offer smooth, quiet operation and long life. The motor armatures are skewed to minimize cogging which is required for low speed tracking
Internal Cable wiring for trouble-free setup and transportation
Designated six-pin RJ-12 modular jack, ST-4 compatible guide port
Autoguide port and Auxiliary ports located on the electronic plate for long exposure astrophotography
Double-line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of goto features
RS-232 communication port on hand to control the telescope via a personal computer
Secure power plug ensures that the mount's power source is not accidentally disconnected
Includes NexRemote telescope control software, for advanced control of your telescope via computer
GPS compatible with optional SkySync GPS Accessory
Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings

Description

Celestron's CGEM-1100 features our high-end 11" Schmidt Cassegrian OTA with XLT coatings mounted on our brand new CGEM™ mount.

The CGEM™ 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 - CGEM 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 CGEM series has a new innovative Polar alignment procedure called All-Star™. All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM, 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.

Performance - For objects near the Meridian (imaginary line passing from North to South), the CGEM will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM mount has a robust database with over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects.

Celestron's CGEM 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.

Specifications:

Optical Design	Schmidt-Cassegrain
Aperture (mm)	280 mm (11 in)
Focal Length (mm)	2800 mm (110 in)
Focal Ratio	10
Eyepiece 1 (mm)	40 mm (1.57 in)
Magnification 1	70 x
Finderscope	9x50
Star Diagonal	1.25
Mount	Computerized Equatorial
Optical Tube	Aluminum
Tripod	Adjustable, Stainless Steel
Power Supply	Car battery adapter
Highest Useful Magnification	661 x
Lowest Useful Magnification	40 x
Limiting Stellar Magnitude	14.7
Resolution (Rayleigh)	0.5 arc seconds
Resolution (Dawes)	0.41 arc seconds
Light Gathering Power (Compared to human eye)	1600 x
Angular Field of View (deg)	0.71 °
Secondary Mirror Obstruction	3.75 in (95 mm)
Secondary Mirror Obstruction by Diameter	34 %
Secondary Mirror Obstruction by Area	12 %
Optical Coatings	Starbright XLT Coatings
Optical Tube Length	24 in (610 mm)
Telescope Weight	120 lbs (54 kg)
Counterweights	2 x 17 lbs
Motor Drive	Low cog DC Servo motors with encoders, both axes
Slew Speeds	Nine slew speeds: 5 °/sec, 2 °/sec, 1 °/sec, 64x, 16x, 8x, 4x, 1x, .5x
Tracking Rates	Sidereal, Solar and Lunar
Tracking Modes	EQ North and EQ South
Alignment Procedures	2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align
Software Precision	24 bit, 0.08 calculation
Gear	Steel worm gear and 90 mm pitch diameter brass worm wheel
Computer Hand Control	Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons
Database	40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Power Requirements	12 VDC 3.2 Amps
GPS	Optional SkySync GPS Accessory
Eyepiece 1 Field of View (deg)	.71 °

Based on Astronomy magazine’s telescope "report cards", scopes of this size and type generally perform as follows . . .
Terrestrial Observation: Observing terrestrial objects (nature studies, birding, etc.) is usually possible only with refractor and catadioptric telescopes, and convenient only when the scope is on an altazimuth mount or photo tripod. Most reflectors cannot be used for terrestrial observing. Scopes with apertures under 5" to 6" are generally most useful for terrestrial observing due to atmospheric conditions (heat waves and mirage, dust, haze, etc.) that degrade the image quality in larger scopes.	No
Lunar Observation: Visual observation of the Moon is possible with any telescope. Larger aperture scopes will provide more detail than smaller scopes, thereby getting a higher score in this category, but may require an eyepiece filter to cut down the greater glare from the Moon's sunlit surface so small details can be seen more easily. Lunar observing is more rewarding when the Moon is waxing or waning as the changing sun angle casts constantly varying shadows to reveal craters and surface features by the hundreds.	Very Good
Planetary Observation:	Very Good
Binary and Star Cluster Observation:	Very Good
Galaxy and Nebula Observation:	Very Good
Photography:	Yes
Terrestrial Photography: Photographing terrestrial objects (wildlife, scenery, etc.) is usually possible only with refractor and catadioptric telescopes, and convenient only when the scope is on an altazimuth mount or photo tripod. Most reflectors cannot be used for terrestrial photography. Scopes with focal ratios of f/10 and faster and apertures under 5" to 6" are generally the most useful for terrestrial photography due to atmospheric conditions (heat waves and mirage, dust, haze, etc.) that degrade the image quality in larger scopes.	No
Lunar Photography: Photography of the Moon is possible with virtually any telescope, using a 35mm camera, DSLR, or CCD-based webcam (planetary imager). While an equatorial mount with a motor drive is not strictly essential, as the exposure times will be very short, such a mount would be helpful to improve image sharpness, particularly with webcam-type cameras that take a series of exposures over time and stack them together. Reflectors may require a Barlow lens to let the camera reach focus.	Yes
Planetary Photography:	Yes
Star Cluster / Nebula / Galaxy Photography:	Yes

What's in the box:

Celestron CGEM-1100 11"/280mm Catadioptric Telescope Kit

40mm (70x) Plossl Eyepiece (1.25")

Finderscope 9x50 with Quick Release Bracket

Visual Back (1.25")

Star Diagonal - 1.25"

Dovetail Slide Bar

Objective Lens Cap

CGEM Motorized Equatorial Telescope Mount with Tripod

Car Battery Adapter (25'/7.7 m)

NexStar Remote Hand Controller

NexRemote Control Software CD

Counterweight Shaft

2 x 17 lb Counterweight

Tripod

2-Year Warranty

Astrophotography

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Celestron CGEM - 1100 Computerized Telescope

Computerized Mount Features

Description

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