From Manufacturer
Observe everything from the moon and planets to stars, galaxies, and nebulae with this NexStar 8SE 203mm f/10 Schmidt-Cassegrain GoTo Telescope Kit from B&H. The telescope features premium optical elements and comes with a NexStar controller to quickly find more than 40,000 celestial objects, and track them for astrophotography. The 7mm, 12mm, and 18mm X-Cel LX eyepieces provide 290x, 169x, and 113x magnification, respectively. Each eyepiece has 16mm of eye relief, 60° field of view, and fully multicoated optics for high-contrast, true-color images.
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.
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
Celestron's X-Cel LX 7mm Eyepiece is designed for comfortable near and deep-space astronomical observation. It is built with a 6-element lens configuration, blackened edges, and anti-reflective fully multi-coated optical surfaces to ensure bright and clear high-contrast images with true color transmission across the entire wide 60° field of view. Celestron engineered the X-Cel LX series of eyepieces with a long 16mm eye relief that brings the user's face back from the scope to minimize vibrations caused by contact with the eyepiece. All eyepieces in the series are completely parfocal, making switching eyepieces convenient by not requiring re-focusing. With a 1.25" diameter barrel, it will fit the most common size drawtubes, visual backs, and accessories; and a rubberized collar provides a non-slip grip especially in cold weather and when wearing gloves. The housing is made of a lightweight and durable aluminum alloy with a reflection-limiting matte anodized finish, and a retractable eyecup that extends with a simple twist for comfortable use with or without eyewear.
Celestron's X-Cel LX 12mm Eyepiece is designed for comfortable near and deep-space astronomical observation. It is built with a 6-element lens configuration, blackened edges, and anti-reflective fully multi-coated optical surfaces to ensure bright and clear high-contrast images with true color transmission across the entire wide 60° field of view. Celestron engineered the X-Cel LX series of eyepieces with a long 16mm eye relief that brings the user's face back from the scope to minimize vibrations caused by contact with the eyepiece. All eyepieces in the series are completely parfocal, making switching eyepieces convenient by not requiring re-focusing. With a 1.25" diameter barrel, it will fit the most common size drawtubes, visual backs, and accessories; and a rubberized collar provides a non-slip grip especially in cold weather and when wearing gloves. The housing is made of a lightweight and durable aluminum alloy with a reflection-limiting matte anodized finish, and a retractable eyecup that extends with a simple twist for comfortable use with or without eyewear.
Celestron's X-Cel LX 18mm Eyepiece is designed for comfortable near and deep-space astronomical observation. It is built with a 6-element lens configuration, blackened edges, and anti-reflective fully multi-coated optical surfaces to ensure bright and clear high-contrast images with true color transmission across the entire wide 60° field of view. Celestron engineered the X-Cel LX series of eyepieces with a long 16mm eye relief that brings the user's face back from the scope to minimize vibrations caused by contact with the eyepiece. All eyepieces in the series are completely parfocal, making switching eyepieces convenient by not requiring re-focusing. With a 1.25" diameter barrel, it will fit the most common size drawtubes, visual backs, and accessories; and a rubberized collar provides a non-slip grip especially in cold weather and when wearing gloves. The housing is made of a lightweight and durable aluminum alloy with a reflection-limiting matte anodized finish, and a retractable eyecup that extends with a simple twist for comfortable use with or without eyewear.