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Celestron CGEM - 800 review
8" 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
6x30 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
40,000 object database with over 100 user-definable objects and expanded
information on over 200 objects
Proven NexStar computer control technology
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, and user-defined slew limits
Flash upgradeable hand control software and motor control units for
downloading product updates over the Internet
Internal Cable wiring for trouble-free setup and transportation
Designated six-pin RJ-12 modular jack, ST-4 compatible guide port
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 control to control the telescope via a
personal computer
Includes NexRemote telescope control software, for advanced control of your
telescope via computer
CGEM Series Manual (4.91 MB)
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
Steel worm gear and 90 mm pitch diameter brass worm wheel
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
Autoguide port and Auxiliary ports located on the electronic plate for long
exposure astrophotography
Precision machined 40 mm diameter steel Polar shafts supported by multiple
tapered roller bearings and ball bearings.
GPS Compatible with optional SkySync GPS Accessory
Secure power plug ensures that the mount’s power source is not
accidentally disconnected
Redesigned electronics deliver constant regulated power to the motors
making them capable of driving the telescope even when not perfectly
balanced
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
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