Celestron NexStar Evolution 8'' SCT Telescope

• 203mm (8") 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"; 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

• 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 OTA, 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 the user 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: 4°/sec, 2°/sec, 1°/sec, 0.5°/sec, 2x, 4x, 8x,16x, and 32x
• Sidereal, Solar, and Lunar tracking rates for observing the fast-moving Moon, to slower-moving deep space subjects
• RS-232 communication port allows for computer control
• Flash updateable 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

• Connect your smart device to the telescope via direct WiFi connection; no router required
• Align and control the telescope from your device
• App uses the device's camera and compass to determine location and what is available to see
• Enjoy the same features as NexStar controller, but without wires
• Expanded database to over 120,000 objects
• Detailed information on over 200 popular objects including audio commentary, statistics, history, mythology, video, and pictures
• Database includes: Sun, Moon, planets, star clusters, nebulae, galaxies, asteroids and comets, satellites, and the International Space Station
• Simulate the night sky up to 100 years in the past or future to plan an upcoming observing session
• Compass Mode: Hold device up to the night sky and identify objects such as stars, planets, and galaxies; zoom in to view fainter objects not visible to the naked eye
• Night Vision Mode: Preserves night-adjusted vision
• Listen to more than four hours of audio narration to learn the history, mythology, and science of astronomy and the night sky
• Works as a stand-alone planetarium app
• Free for Android or iOS mobile devices
• Apple iOS 7.0 and later, or Android 4.0 and later

• Mount:
• Motorized single-arm alt-azimuth fork mount
• Altitude and azimuth clutches to manually point the telescope when it is powered off
• Brass worm gears with steel ball bearings provide smooth movement with reduced vibration
• 146mm diameter/180-tooth stainless steel worm wheels
• Ports: One port for NexStar+ controller; one 5 VDC USB charging port for smartphones and small electronics; three auxiliary ports for optional accessories such as StarSense AutoAlign System
• Runs on one internal rechargeable 9.6V, 4.5Ah lithium-iron phosphate (LiFePO4) battery
• Includes power supply with US, EU, UK, and AU plugs

• Tripod:
• Stainless steel two-section legs
• Adjustable height accommodates a variety of users
• Spikes at the end of the legs provide a sure footing on soft or uneven ground
• Tray keeps accessories and equipment safe and organized
• No tools required to set up mount and tripod

• Eyepieces:
• 1.25"-diameter barrel accept most filters
• Anti-reflection multi-coated glass
• Fold-down rubber eyecups for use with or without eyeglasses
• 40mm eyepiece produces 51x magnification
• 13mm eyepiece produces 156x magnification

• Diagonal:
• 1.25" snout and eyepiece holder
• 90° angle places head in a comfortable position when optical tube assembly is pointed at or near the zenith
• Star mirror diagonal corrects view horizontally, but not vertically

• Finderscope:
• 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

CEL12091