Celestron CGEM II 1100 11" f/10 Schmidt-Cassegrain Telescope

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Your Price: CAD6,845.42

Retail Price:CAD7,187.69

Your Savings:CAD342.27(5%)

Part Number: 12012

Availability: Usually ships in 5-7 business days

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Description

Outfitted with a large aperture/long focal length optical tube assembly (OTA) and their updated computer-controlled motorized EQ mount, Celestron's CGEM II 1100 11" f/10 Schmidt-Cassegrain Telescope gives you a complete observational rig for making detailed observations of the Moon and planets within our solar system with the ability to reach into deep sky to discover galaxies, nebulae, clusters, and stars. Complementing the aperture and focal length is the proprietary StarBright XLT multi-coating system. With this system, light transmission is increased throughout the entire optical path with anti-reflection multi-coated lenses, highly reflective multi-coated mirrors, and Crown optical glass elements. While the focal ratio is a relatively slow f/10, the scope's precision tracking system allows it to be a competent astrophotography/astroimaging platform.

The CGEM II mount is engineered to carry up to a 40-pound payload and is outfitted with high-torque dual DC servo motors, it is able to smoothly and accurately slew and track heavier OTAs such as the one provided here. Its dual dovetail saddle allows it to accept the larger Losmandy-style plate used on the OTA, while also being able to accept other OTAs with the smaller Vixen-style plate. Celestron also improves its usage by adding compatibility with their SkySync GPS unit for a higher-level of precision during set up and alignment. To provide a stable platform for the mount and your OTA, a heavy-duty stainless steel tripod is included that sports large 2" legs and an accessory tray that doubles as a stabilizer.

The brain of the CGEM II is the NexStar+ computer controller. Equipped with a database of 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 and filters added for custom object lists. Its intuitive menu-driven user interface puts the power to observe the heavens with nine slew speeds and three tracking rates, plus anti-backlash compensation and Permanent Periodic Error Correction (PPEC) for smoother movements in the motors and improved tracking over time. Features such as guided tours, extended information on 200 popular objects, and multiple alignment options, make the NexStar+ controller easy to use and invaluable to new users and experienced star-gazers.

Optical Tube Assembly

Large 11" aperture
f/10 focal ratio
Long 2800mm focal length
Schmidt-Cassegrain optical path configuration
StarBright XLT Optical Coatings: Multi-layer aluminum/SiO2 (quartz)/TiO2 (titanium dioxide)/Si02 (silicon dioxide) mirror coatings with flat reflectivity across the light spectrum for both astrophotography/astroimaging and visual observation
Resolution: Rayleigh, 0.5 arcsec; Dawes, 0.42 arcsec
Secondary Mirror Obstruction: 3.75" (9.5cm), 34% by diameter, 12% by area

Mount

German equatorial mount
40-pound payload capacity
15-70° latitude adjustment range
Dual-axis low-cog DC servo motors with optical encoders for smooth tracking and quiet operation
High-torque motors provide smooth tracking and slewing for heavy OTAs
Autoguider port for making corrections while astroimaging
Dual Vixen/Losmandy dovetail saddle, compatible with CG-5 and CGE bars
Long clutch levers make tightening and loosening of clutches easier for manual movement
Internal cables/wires for snag-free operation
GPS-compatible with optional SkySync unit
Runs on included 12 VDC, 3.2A car/vehicle power supply
Includes 17lb counterweight with shaft

NexStar+ Hand Controller

Features

Intuitive menu-driven user interface
Nine Slew Speeds: 2x, 4x, 8x, 16x, 32x, 0.3°/sec, 1.0°/sec, 2°/sec, 4°/sec
Multiple Tracking Rates: Sidereal, Lunar, and Solar
Anti-Backlash Correction: Train-out intrinsic play in gears for smoother movement and tracking
Permanent Periodic Error Correction (PPEC): Improves tracking precision for long-exposure astrophotography and imaging

Database

40,000-object database
100 user-defined objects for customization
Filters for creating custom object lists
Solar System: All 7 planets plus the Moon, Sun and Pluto
Custom lists of all the brightest stars, double stars, variable stars and asterisms
Custom lists of all the best galaxies, nebulae and clusters as well as the complete Messier catalog and select NGC objects

Functions

Alignment Options: One or two-star, Solar system, Quick and Last
Sky Tour: Based on location, date, and time, the system shows the best objects in the sky and automatically slews to them
Object Info: Provides useful information about the selected object such as magnitude and constellation. Includes extended information about 200 popular objects

Physical characteristics

2-line, 18-character LCD window with red backlighting for comfortable viewing without affecting night-adjusted vision
19 function keys, backlit in red
Micro-USB Port: Connect to a computer, for use with software programs for point-and-click slewing capability and updating firmware via PC

Included Accessories

1.25" 40mm eyepiece yields 70x power
1.25" 90° star diagonal puts eyepiece in comfortable position when OTA is pointed at or near the zenith
9x50 finderscope with bracket

Tripod

Stainless steel legs
Heavy-duty 2" diameter
Graduated markings on lower section for height repeatability
Accessory/eyepiece holder tray that doubles as leg spreader/lock
Weight: 20 pounds

Optical Tube Info:


Optical Design	Schmidt-Cassegrain
Aperture (mm)	279.4 mm (11 in)
Focal Length	2800 mm (110 in)
Focal Ratio	10
Focal Length of Eyepiece 1 (mm)	40 mm (1.57 in)
Magnification of Eyepiece 1	70 x
Finderscpoe	9x50
Star Diagonal	1.25
Optical Tube	Aluminum
Highest Useful Magnification	660 x
Lowest Useful Magnification	40 x
Limiting Stellar Magnitude	14.7
Resolution (Rayleigh)	0.5 arc seconds
Resolution (Dawes)	0.42 arc seconds
Light Gathering Power (Compared to human eye)	1593 x
Secondary Mirror Obstruction	3.75 in (95 mm)
Secondary Mirror Obstruction by Diameter	34%
Secondary Mirror Obstruction by Area	12%
Optical Coatings	StarBright XLT
Optical Tube Length	24 in (610 mm)
Optical Tube Weight	27.5 lbs. (12 kg)
Dovetail Compatibility	CGE Mount
Mount Info:
Mount Type	German Equatorial Mount
Tripod	2” Steel tripod with graduated markings on lower section
Dovetail Mount	Directly connects to both CG-5 & CGE dovetail bars
Payload Capacity	40 lbs
Latitude Range	15º – 70º
Power Requirements	12 VDC, 3.2 amps
Ports	1x Hand control port, 1x Auxiliary Port, 1x Auto guider port, 1 USB 2.0 port (on hand control)
Motor Drive	Low cog DC servo motors
Slew Speeds	9 slew speeds
Tracking Rates	Sidereal, Solar and Lunar
Tracking Modes	EQ North and EQ South
Alignment Procedures	AutoAlign, 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align
Computerized Hand Control	Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons, USB 2.0 port for PC connection
Database	40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Mount Weight	40 lbs
Tripod Weight	20 lbs
Weight of Counterweight	2 x 17 lbs counterweight
Total Weight of Mount Kit	77 lbs

In the Box

Celestron CGEM II 1100 11" f/10 Schmidt-Cassegrain Telescope

CGEM II GoTo EQ Mount with Tripod

17 lb Counterweight for the CGEM EQ Mount

1.25" 40mm Eyepiece

1.25" 90° Star Diagonal

9x50 Finderscope with Bracket

Limited Two-Year Warranty

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Celestron CGEM II 1100 11" f/10 Schmidt-Cassegrain Telescope

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