B&H assembled this Celestron NexStar Evolution 8 203mm f/10 Schmidt-Cassegrain GoTo Telescope and Accessories Kit to give you a comprehensive observational rig for viewing the planets and Moon, with a wide variety of magnifications to choose from. The kit includes the 8" NexStar Evolution with integrated WiFi to control it with an Android or iOS mobile device, an eyepiece and planetary filter set, and a dew cap to help keep the front corrector plate free from condensation.
The NexStar Evolution 8 203mm Schmidt-Cassegrain Telescope from Celestron is a powerful, portable, versatile, and user-friendly telescope that can be used for observing everything from the Moon and planets to deep-sky objects like galaxies and nebulae. Using Celestron's proprietary StarBright XLT multicoating system, light transmission is increased throughout the entire optical path with antireflection multicoated lenses, highly reflective multicoated mirrors, and four-element rare-earth glass. While the focal ratio is a slow f/10, the scope's precision tracking system allows it to be a competent astrophotography/astroimaging platform for the Moon and planets.
The Evolution comes with two ways to use and control it. The first is to simply download Celestron's free Navigator app for Android and iOS smartphones and tablets. The scope's Wi-Fi provides the connection to the app and expands the capabilities and functionality, including an expanded database of over 120,000 objects with detailed information on more than 200 of those objects. Second is the iconic 2-line 16-character NexStar computer controller. This is a wired piece of hardware with a database of over 40,000 celestial objects plus several astronomical catalogs including the Messier and Caldwell. Whether using the controller or mobile device, the system can assist in properly aligning the scope, provide tours of the objects and events visible whenever and wherever you're viewing, and allow for manual direction and slew control.
Designed for portability, the Evolution features a long-life lithium-iron phosphate battery providing up to 10 hours of continual use on a single charge. The scope comes with an AC power supply with plugs for the US, EU, UK, and AU outlets. The battery powers the servo motors, auxiliary accessory ports, a USB charging port, and the built-in Wi-Fi. Manual clutches in both altitude and azimuth enable you to manually move and point the telescope when it's powered off.
- 203mm (8") aperture
- f/10 focal ratio
- 2032mm focal length
- Crown optical glass primary mirror
- StarBright XLT optical coatings: Multilayer aluminum/SiO2 (quartz)/TiO2 (titanium dioxide) mirror coatings with flat reflectivity across the light spectrum for both astrophotography/astroimaging and visual observation
- Multilayer 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 updates 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 Wi-Fi 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
- Antireflection multicoated 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 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
Celestron put together this 1.25" Eyepiece and Filter Kit to give users essential accessories for planetary observation. This kit includes five Plossl eyepieces that provide a wide range of magnifications on any given telescope, six of the most popular colored planetary filters to enhance the views, a Moon filter that reduces glare from the lunar surface while enhancing contrast, and a 2x Barlow lens which essentially doubles the magnification of any eyepiece used with it. An included hard aluminum carrying case protects the accessories while custom die-cut foam on the inside cushions them.
- 1.25" diameter barrels
- Accepts most standard 1.25" eyepiece filters
- Anti-reflection multi-coated optics improves light transmission, color rendition, and contrast
- 52° apparent angle of view
- 6mm offers highest magnification potential
- 8mm produces a high magnification, but with a slightly longer eye relief than the 6mm
- 13mm produces a comfortable mid-range magnification
- 17mm offers a higher magnification potential than the 32mm without sacrificing brightness
- 32mm has the lowest magnification potential with the longest eye relief and highest light transmittance
- Fits standard 1.25" eyepieces
- #80A Blue:
- Most popular for the study of detail on Jupiter and Saturn
- Enhances the contrast on Jupiter's cloud belts
- Enhances details of the Great Red Spot
- Brings out detail in Saturn's belts and polar features
- Also very useful for lunar observing
- #58 Green:
- Rejects red and blue wavelengths
- Increases the contrast on the lighter parts of the surface of Jupiter
- Useful for enhancing the cloud belts and polar regions on Saturn
- Increases the contrast in Mars polar ice caps
- Increases the contrast of atmospheric features on Venus
- #56 Light Green:
- Excellent for the observation of Martian polar ice caps and for the yellow tinted dust storms on the planet's surface
- Increases the contrast of the red and blue regions in Jupiter's atmosphere and cloud belts
- Great for lunar observing
- #25 Red:
- Blocks the transmission of blue and green wavelengths
- Sharply defines the contrast between the cloud formations and the lighter-toned surface features on Jupiter
- Useful for definition of the Martian polar ice caps and maria
- #21 Orange:
- Reduces transmission of blue and green wavelengths
- Increases the contrast between these blue/green areas and red/yellow/orange areas
- Sharpens the boundaries between these areas on the Martian surface
- Sharpen the contrast in Jupiter's belts and to bring out the Great Red Spot
- Slightly increases surface details on Saturn
- #12 Deep Yellow:
- Enhances red and orange features on Jupiter and Saturn, while blocking blue and green wavelengths
- Lightens the red and orange features on Mars, while reducing, or blocking, the transmission of blue and green areas - increasing the contrast between the two
- Enhances the blue clouds in the Martian atmosphere
- Moon:
- Makes viewing the Moon safe when at or near full phase
- Reduces glare to bring out more surface detail and improve contrast
- Also useful to bring out surface details on Venus
- 1.25" diameter barrel and eyepiece holder
- 2x magnification doubles the magnification of any eyepiece used
- Increases magnification while preserving eyepiece's native eye relief for easier viewing at high magnifications
- Hard aluminum case with reinforced corners and edges
- Dual latch-locks
- Hinge carrying handle
- Custom interior die-cut foam protects and cushions accessories
- Extra room for additional accessories - simply pluck foam for a custom-fit space
Help keep dew and dust off the front of your 6" & 8" Schmidt Cassegrain, EdgeHD, or RASA (with single dovetail) optical tube's front corrector plate with the Celestron Flexible Dew Shield DX. Made from flexible and durable polyethelene plastic with a hook-and-loop closure for fast and easy installation and removal, the shield's interior surface is lined with black felt to absorb unwanted light reflections and prevent moisture from condensing in and sliding toward the plate. The shield has a long notch to provide the clearance required to accommodate a 4" wide dovetail mounting plate and to ensure a solid connection.