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Celestron Advanced Series C8-SGT (XLT) Schmidt-Cassegrain

C8-SGT (XLT) Computerized Telescope Item #11026-XLT

FEATURES

General

  • 8" Schmidt-Cassegrain telescope
  • StarBright XLT high transmission coatings
  • 6x30 finderscope to help accurately find objects
  • Heavy Duty (CG-5GT) computerized German Equatorial mount
  • Ultra sturdy 2" diameter steel tripod with accessory tray
  • Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
  • Includes CD-ROM "The Sky" Astronomy Software which provides education about the sky and printable sky maps

Computerized

  • Proven NexStar computer control technology
  • 40,000 object database with 400 user-definable objects and expanded information on over 200 objects
  • 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 star; solar systems; objects and asterisms
  • DC Servo motors with encoders on both axes
  • Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
  • Autoguider port for long exposure astrophotography
  • Double line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of goto features
  • Compatible with optional NexRemote telescope control software, for advanced control of your telescope via computer
  • RS-232 communication port on hand control to control the telescope via a personal computer
  • GPS-compatible with optional CN16 GPS Accessory (93966)
DESCRIPTION

Celestron's C8 has been a best-selling optical system for decades. Combining a repuation for optical excellence with lightweight portability and great value, the C8-S is the perfect choice if you’re looking for an advanced first telescope or want to upgrade to a larger aperture telescope.

An adjustable counterweight makes it easy to point, balance and use. This C8 optical system comes with our premium StarBright® XLT coatings and its large aperture offers light gathering power 843 times that of the human eye. Included are setting circles on both axes, slow-motion controls and latitude scale. An optional polar alignment scope for quick alignment is available.

Mounted on the Advanced GT Series computerized mount, this telescope has some high performance software and hardware features. Operated by our proven NexStar® computer control technology the telescope has a 40,000+ object database with 400 user-definable objects and expanded information on over 200 objects. 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 star; solar systems; objects and asterisms.

Using the RS-232 communication port on the hand control, you can control the telescope via a personal computer and our new flash upgradeable hand controls allow you to update your telescope's operating software via the internet. An autoguider port is also included for astrophotography.

SPECIFICATIONS
OPTICAL DESIGN Schmidt-Cassegrain
APERTURE 203.2 mm (8 in)
FOCAL LENGTH 2032 mm (80 in)
FOCAL RATIO 10
FINDERSCOPE 6x30
MOUNT CG-5 Equatorial
FASTAR COMPATIBLE Yes
EYEPIECE 1 25 mm (0.98 in)
MAGNIFICATION 1 81 x
STAR DIAGONAL 1.25
ACCESSORY TRAY Yes
TRIPOD 2 inch Stainless Steel
CD ROM "The Sky®" Level 1
POWER SUPPLY Car Battery Adapter
HIGHEST USEFUL MAGNIFICATION 480 x
LOWEST USEFUL MAGNIFICATION 29.03 x
LIMITING STELLAR MAGNITUDE 14
RESOLUTION 0.69 arcsec
RESOLVING POWER 0.57 arcsec
PHOTOGRAPHIC RESOLUTION 200 line/mm
LIGHT GATHERING POWER 843 x
ANGULAR FIELD OF VIEW 0.64 °
LINEAR FIELD OF VIEW (@1000 YDS) 33.6 ft (10.24 m)
LINEAR FIELD OF VIEW (@1000 m) 11 m
OPTICAL COATINGS Starbright Coating/XLT
SECONDARY MIRROR OBSTRUCTION 2.7 in (68.58 mm)
SECONDARY MIRROR OBSTRUCTION BY AREA 11.4 %
SECONDARY MIRROR OBSTRUCTION BY DIAMETER 33.8 %
OPTICAL TUBE LENGTH 17 in (431.8 mm)
TELESCOPE WEIGHT 54.5 lb (24.72 kg)
COUNTERWEIGHTS 1-11lb
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 3°/sec
TRACKING RATES Sidereal, Solar and Lunar
TRACKING MODES EQ North and EQ South
ALIGNMENT PROCEDURES AutoAlign, 2-Star Alignment, Quick Align
SOFTWARE PRECISION 24bit, 0.08 arcsec calculation
COMMUNICATION PORTS RS-232 communication port on hand control
MOTOR PORTS Aux Port, Autoguide Ports
DATABASE 40,000+ objects, 400 user defined programmable objects. Enhanced information on over 200 objects