CEN8SE

11069

Celestron

Representing the largest aperture in the series and drawing in more light to see deeper into space than smaller versions, Celestron's NexStar 8SE 203mm f/10 Schmidt-Cassegrain GoTo Telescope is a powerful yet portable scope that can be used for observing everything from the Moon and planets to deep-sky objects like stars, galaxies, and nebulae, while maintaining the user-friendly interface of the SE series. Using Celestron's proprietary StarBright XLT multi-coating system, light transmission is increased throughout the entire optical path with anti-reflection multi-coated lenses, highly reflective multi-coated mirrors, and crown optical glass elements. While the focal ratio is a relatively slow f/10, the mount's precision tracking system allows it to be a competent shorter-exposure astrophotography imaging platform for the Moon and planets.Driving the dual servo motors on the mount is the brain of the NexStar 8SE: The iconic NexStar+ computer hand controller. Packed with 40,000+ celestial objects, it can hold up to 100 additional user-defined destinations and is updatable via the Celestron website. It has multiple alignment procedures to get you observing fast, including the super-easy SkyAlign system. Capable of being used in the northern or southern hemispheres, the NexStar has sidereal, lunar, and solar tracking speeds to accurately follow near and deep-sky objects, plus nine slew speeds and the ability to automatically trigger a camera's shutter release for Fastar or piggyback wide-field photography or conventional prime-focus astrophotography.Performance 8" (203.2mm) aperturef/10 focal ratio2032mm focal lengthCrown optical glass primary mirrorStarBright 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 observationMulti-layer MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide) anti-reflective lens coatingsHigh-transmission water white glass corrector lens with 97.4% light transmissionInternal focusing mechanismResolution: 0.69 arcsec (Rayleigh); 0.57 arcsec (Dawes)Secondary mirror obstruction: 2.5"; 31% by diameter; 9.77% by areaFastar capability: Secondary mirror can be removed and a DSLR or imaging rig mounted in its place for fast wide-field astrophotographyNexStar+ Computer Controller 2-line, 16-character LCD display19 fiber optic backlit red LED buttonsDatabase of over 40,000 celestial objects plus 100 user definedAutomatically slew to planets, stars, constellations, and a variety of catalogsCamera control: For piggyback wide-field or conventional astrophotography through the optical tube assembly, the controller can automatically trigger the shutter release to capture the imageAnti-backlash compensation programs out play between gears for more precise trackingTour Mode: Shows a selection of the most popular objects for the time and date you are observingConstellation Tour: Allows you to take a tour of all the best objects within a particular constellationAlignment procedures: SkyAlign, Auto 2-Star, 1-Star, 2-Star, and Solar SystemSkyAlign alignment: Takes minutes, with minimal effort or experience point the telescope at three bright objects in the sky, and the telescope does the restNine slew speeds: 5 /sec, 3 /sec, 1 /sec, 2x, 4x, 8x, 16x, 32x, and 64xSidereal, Solar, and Lunar tracking rates for observing the fast-moving Moon, to slower-moving deep-space subjectsTracking modes: Alt-Az, EQ North, EQ South, Off (no tracking when using as a terrestrial spotting scope)RS-232 communication port allows for computer controlFlash updatable via the Celestron websiteDatabase Details:Solar system objects including the Sun, Moon, and planetsNamed objectsStars: Asterims, variable stars, double stars, named starsCaldwell catalogMessier catalogNGC catalogSAO catalogConstellationsMount & Tripod Mount:Single-fork alt-azDual-axis servo motors allow for precise tracking with virtually no v