Performance

• 8" (203.2mm) aperture

• f/10 focal ratio

• 2032mm focal length

• Crown optical glass primary mirror

• StarBright XLT optical coatings: Multi-layer aluminum/SiO2 (quartz)/TiO2 (titanium dioxide) mirror coatings with flat reflectivity across the light spectrum for both astrophotography/astroimaging and visual observation

• Multi-layer MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide) anti-reflective lens coatings

• High-transmission water white glass corrector lens with 97.4% light transmission

• Internal focusing mechanism

• Resolution: 0.69 arcsec (Rayleigh); 0.57 arcsec (Dawes)

• Secondary mirror obstruction: 2.5"; 31% by diameter; 9.77% by area

• Fastar capability: Secondary mirror can be removed and a DSLR or imaging rig mounted in its place for fast wide-field astrophotography

NexStar+ Computer Controller

• 2-line, 16-character LCD display

• 19 fiber optic backlit red LED buttons

• Database of over 40,000 celestial objects plus 100 user defined

• Automatically slew to planets, stars, constellations, and a variety of catalogs

• Camera control: For piggyback wide-field or conventional astrophotography through the optical tube assembly, the controller can automatically trigger the shutter release to capture the image

• Anti-backlash compensation programs out play between gears for more precise tracking

• Tour Mode: Shows a selection of the most popular objects for the time and date you are observing

• Constellation Tour: Allows you to take a tour of all the best objects within a particular constellation

• Alignment procedures: SkyAlign, Auto 2-Star, 1-Star, 2-Star, and Solar System

• SkyAlign alignment: Takes minutes, with minimal effort or experience—point the telescope at three bright objects in the sky, and the telescope does the rest

• Nine slew speeds: 5°/sec, 3°/sec, 1°/sec, 2x, 4x, 8x, 16x, 32x, and 64x

• Sidereal, Solar, and Lunar tracking rates for observing the fast-moving Moon, to slower-moving deep-space subjects

• Tracking modes: Alt-Az, EQ North, EQ South, Off (no tracking when using as a terrestrial spotting scope)

• RS-232 communication port allows for computer control

• Flash updatable via the Celestron website

Database Details:

• Solar system objects including the Sun, Moon, and planets

• Named objects

• Stars: Asterims, variable stars, double stars, named stars

• Caldwell catalog

• Messier catalog

• NGC catalog

• SAO catalog

• Constellations

Mount & Tripod

Mount:

• Single-fork alt-az

• Dual-axis servo motors allow for precise tracking with virtually no vibration

• Motor resolution: 0.26 arcsec

• Optical encoders track mount movement to improve tracking and GoTo accuracy while allowing the mount to maintain alignment when moved manually

• Communication ports: Autoguider port, Aux port, hand controller

• Runs on eight user-supplied AA batteries or optional 12 VDC power supply

Tripod:

• Stainless steel legs

• Adjustable height accommodates a variety of observation positions or users

• Tray holds accessories such as eyepieces and filters and adds stability and vibration reduction

• Weight: 10 pounds

Included Accessories

Eyepiece:

• 1.25"-diameter barrel

• 25mm focal length produces 81x magnification

• Anti-reflection multi-coated glass improves color rendition and contrast

• Threaded barrel accepts most 1.25" astronomical filters

• Fold-down rubber eyecup for use with or without eyeglasses

• 33' field of view at 1000 yards

Diagonal:

• 1.25" input and output accepts most 1.25" astronomical eyepieces and accessories

• 90° angle puts head in a comfortable position when observing at or near the zenith

• Corrects view horizontally, but not vertically

StarPointer Finder:

• Projects a single red dot in line of sight

• Unmagnified view ensures a wide field of view to make finding objects faster and star-hopping navigation easier