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01588 620717
Celestron CGEM 1100 XLT
An observatory class telescope with a rock solid
reputation. The CGE series is Celestron's line of observatory class Schmidt-Cassergrain
telescopes. This 11" aperture model has state of the art CGE GoTo German
Equatorial mount, a choice long favoured by astronomy buffs and
astrophotographers because of its stability and portability.
The CGE-1100 Schmidt-Cassegrain Telescope is
part of Celestron’s ?Top-of-the-Line” German Equatorial mounted astronomical
telescopes. With the optical tube assembly of the CGE-1100 weighing only
27.5 lb., this telescope is still portable enough to be taken to dark skies,
and it has 89% more light gathering power than an 8” telescope. This model
features our premium StarBright XLT coatings.
This telescope is especially at home as a solid platform for long exposure
photography with optional CCD cameras or photographic equipment; it is a
serious scientific research tool. Using an f/6.3 Focal Reducer makes it
usable with a wide variety of CCD cameras.
German Equatorial mounts are recognized as being the superior choice for
astrophotography because of their rock solid stability, simple balancing and
easy accessibility for attaching equipment. Couple these mechanical features
with other performance features like a designated autoguider port, permanent
periodic error correction and equatorial alignments, and the CGE 1100 would
please any serious amateur or college astronomy program.
- 11" Schmidt-Cassegrain telescope
- Carbon Fiber Tube - Strong and lightweight with 1/4 the thermal expansion
of an aluminum tube
- Observatory-class computerized German 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
- Cold rolled carbon steel tripod legs provide extremely stable platform
- Star diagonal provides more comfortable viewing position when observing
objects that are high in the sky
Technical Information:
OPTICAL DESIGN: Schmidt-Cassegrain
APERTURE: 235 mm (9.25 in)
FOCAL LENGTH: 2350 mm (92.52 in)
FOCAL RATIO: 10
FINDERSCOPE: 6x30
MOUNT: Computerized Equatorial
OPTICAL TUBE Aluminum
EYEPIECE 1: 25 mm (0.98 in)
MAGNIFICATION 1: 94 x
STAR DIAGONAL: 1.25
TRIPOD: Adjustable, Carbon Steel
CD ROM: NexRemote control software w/RS232 cable
POWER SUPPLY: Car battery adapter
HIGHEST USEFUL MAGNIFICATION: 555 x
LOWEST USEFUL MAGNIFICATION: 34 x
LIMITING STELLAR MAGNITUDE: 14.4
RESOLUTION: 0.59 arc seconds
RESOLVING POWER: 0.49 arc seconds
PHOTOGRAPHIC RESOLUTION: 200 line/mm
LIGHT GATHERING POWER: 1127 x
ANGULAR FIELD OF VIEW: 0.53 °
LINEAR FIELD OF VIEW (@1000 YDS): 28 ft (8.53 m)
OPTICAL COATINGS: Starbright XLT Coating
SECONDARY MIRROR OBSTRUCTION: 3.35 in (85.09 mm)
SECONDARY MIRROR OBSTRUCTION BY AREA: 13 %
SECONDARY MIRROR OBSTRUCTION BY DIAMETER: 36.2 %
OPTICAL TUBE LENGTH: 22 in (558.8 mm)
OPTICAL TUBE WEIGHT: 20 lb (9.07 kg)
TRIPOD AND PIER WEIGHT: 41.5 lb (18.82 kg)
EQ MOUNT WEIGHT: 42 lb (19.05 kg)
COUNTERWEIGHT BAR: 5 lb (2.27 kg)
COUNTERWEIGHTS: 1 x 25 lb
MOTOR DRIVE: DC Servo motors with encoders, both axes
COMPUTER HAND CONTROL: Double line, 16 character Liquid Crystal Display; 19
fiber optic backlit LED buttons
SLEW SPEEDS: Nine slew speeds: 4°/sec, 2°/sec, .5°/sec, 64x, 16x, 8x, 4x,
1x, .5x
TRACKING RATES: Sidereal, Solar and Lunar
TRACKING MODES: EQ North & EQ South
ALIGNMENT PROCEDURES: AutoAlign, 2-Star Align, Quick Align, 1-Star Align,
Recall Last Alignment, 3-Star Align
SOFTWARE PRECISION: 24bit, 0.08 calculation
DATABASE: 40,000+ objects, 400 user defined programmable objects. Enhanced
information on over 200 objects
POWER REQUIREMENTS: 12 VDC 2A
POWER REQUIREMENTS - IDLE CURRENT: 215 mA
POWER REQUIREMENTS - SLEW ONE AXIS: 600 mA
POWER REQUIREMENTS - SLEW BOTH AXES: 850 mA
INTERNAL CLOCK: Yes
GPS: Optional CN-16 GPS Accessory
Price £2,739.00
All major credit cards accepted - please phone our hotline Tel: 01588 620717
Evergreen Optics
The Cann Barn, Mellington, Church Stoke, Montgomery, SY15 6TQ
Tel: 01588 620717