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Home Telescopes Celestron Telescopes Celestron Advanced VX Telescopes Celestron Advanced VX 800 RASA Telescope
This advanced imaging system combines the 8 inch Rowe-Ackermann Schmidt Astrograph (RASA) with the strong-yet-portable Advanced VX (AVX) German equatorial mount. Simply add a mirrorless camera and this package offers everything you need to take spectacular images of wide-field deep sky objects.RASA Performance Made for EveryoneCapture spectacular wide-field deep sky images in seconds with Celestrons new portable astrograph, the 8 Rowe-Ackermann Schmidt Astrograph (RASA). This incredibly fast f/2.0 system is the perfect companion to todays color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras. Thanks to its fast focal ratio and patented optical design, you can produce sharp, detailed images and, in many cases, skip the autoguider completely. Weighing in at just 17 pounds, its easy to transport your 8 RASA to the most remote dark sky locations.The 8" RASA is an imaging telescope that delivers a flat field without optical aberrations for razor sharp stars across a wide field of view. It can capture stunning deep-sky astronomical images without the challenges typically presented by longer focal length instruments at a fraction of the cost of those systems.The latest addition to the RASA family, this 8" version is a much more portable and affordable version of the heralded RASA 11, which was introduced to much acclaim in 2014. With the 8" RASA joining the lineup, a wider range of astroimagers can enjoy the benefits of the RASA design. It has many of the same thoughtfully designed features as its "big brother" RASA 11, including the integrated air-cooling system, internal filter mount, and sturdy CGE dovetail mounting bar.Purely designed for imaging, the 8" RASA cannot be used visually. The prime focus focal plane is located at the front of the optical system, so it cannot accommodate a traditional eyepiece.Shorter Exposure Times and Virtual "Real-Time" ObservingSince it is an F/2.0 optical system, imagers can use shorter exposure times to capture detail in faint objects. When combined with sensitive cameras and the proper live stacking software, the 8 RASA can provide an almost real-time observing experience. View images on a computer instantly that are brighter and more detailed than can be seen in much bigger telescopes with the naked eye.Because shorter exposure times are possible, your equatorial mount wont need to accurately track over extended periods. The 8 RASAs relatively short 400mm focal length also lessens equatorial tracking demands. In many cases, autoguiding will not be required. Weighing only 17 lb, this optical tube pairs perfectly with a wide variety of mounts.Ultra-Stable Focus SystemWith the launch of the 8 RASA, Celestron is unveiling a new focuser design that mitigates lateral movement of the primary mirror when focusing, slewing, or tracking with the astrograph. Focusing is easier, more accurate, and more stable than ever. The key to the Ultra-Stable Focus System is two sets of precision bearings that are precisely aligned and tested during assembly to ensure optimal results.Built for Todays Latest CamerasUnlike the larger RASAs that work with DSLR and large CCD cameras, the 8" model was designed with color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras in mind. The telescope does not work with standard DSLR cameras. It is optimized for sensors with up to a 22mm diagonal, but performs well with sensors up to 32mm diagonal. The APS-C sized sensors used in many mirrorless cameras are a good choice. 42mm full frame sensors will also work, but performance will be poor at the edges of the sensor and field illumination will be reduced. Additionally, we do not recommend pairing RASA 8 with any camera body more than 4 in diameter. See the chart below to determine if your camera is compatible with RASA 8.Advanced VX & TripodThe Advanced VX mount is designed to provide superior performance for smaller telescopes while taking advantage of Celestrons most advanced technologies: All-Star Polar Alignment, Celestron PWI telescope control software, SkyAlign, and permanently programmable periodic error correction (PPEC).If youre an experienced imager, youll love taking this portable mount to a dark sky site and enjoying all the conveniences of a larger observatory mount. Or, if youre new to imaging, Advanced VX will help you get started with the hobby and keep up with your needs for years to come.Computerized German equatorial mountThe Advanced VX is the smallest of Celestrons German equatorial mounts. The computerized GoTo capability automatically tracks objects as they move across the night sky. The Advanced VX mount includes ports for a hand control, an autoguider, and 2 AUX ports for optional accessories. The NexStar+ hand control gives you instant access to all the functions your mount has to offer. With automatic slewing and menu descriptions, astronomers of all skill levels can master this mount in just a few observing sessions. The Advanced VX also has an impressive tripod for its class with 2-diameter steel tripod legs, providing an extra-wide stance for improved stability.Payload capacityThe payload capacity for the Advanced VX is 30 lb. It offers a sturdy platform for the 8" Rowe-Ackermann Schmidt Astrograph optical tube, even when paired with optional accessories like StarSense AutoAlign, Focus Motor, a finderscope, and a camera. Celestron's payload capacity does not include the weight of the counterweights. Dual saddle plateAs of early 2019, Advanced VX mounts now include a new dual saddle plate that accommodates both CG-5 and CGE-style dovetails. Switching between the two saddle plates is as simple as moving the hand knobs into a separate set of holes. Now you can use your Advanced VX mount not only with the 8" RASA, but virtually any optical tube within Advanced VXs weight limit. Compatible with Vixen format dovetails 100mm or longer, not compatible with Losmandy D format plates (regardless of plate manufacturer).SoftwareCelestron PWI Telescope Control SoftwareYour Ultimate Astronomy Software SuiteAll current Celestron computerized telescopes include Celestron PWI (CPWI), the most advanced astronomy software suite provided with any consumer-grade telescope. Celestrons experts co-developed CPWI with the engineers at PlaneWave Instruments. The result is an all-in-one solution offering you many of the same features used on PlaneWaves observatory-class telescopes. Graphical planetarium interface with PointXP advanced mount modelling allows you to add 100+ points to your alignment model for the most accurate pointing and tracking possible Ideal for remote observatory setups: save and re-load your alignment and park your scope Provides a complete ASCOM telescope interface to allow control of the telescope from third party software applicationsStarry Night SoftwareAlso included with your purchase is a free download of Celestrons Starry Night Special Edition Software. This advanced software by Simulation Curriculum offers detailed information about celestial objects and helps you plan your next observing or imaging session. The Special Edition software also includes telescope control via your PC.Accessories IncludedThe Advanced VX RASA 8 comes complete with a M42 camera adapter, C-thread camera adapter, and fan battery pack.
Rowe-Ackermann Schmidt Optical Design 8" f/2.2 flat field imaging system with rare-earth glass for outstanding images free of optical defects like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor. Unlike the larger RASAs that work with DSLR and large CCD cameras, the 8 model was designed with color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras in mind. The astrograph does not work with standard DSLR cameras. Ultra-Stable Focus System six precision sealed ball bearings virtually eliminate image shift. Integrated air-cooling system 12V DC MagLev fan reduces cooldown time and provides optimal air flow while filtering out dust. Internal filter mount seamlessly accommodates a Light Pollution Imaging Filter into the optical path. Performs over a wider spectral range than most telescopes, from 390-800 nm, so more of the light passing through the astrograph is in sharp focus. Advanced VX, the most compact and portable of Celestrons German equatorial mounts, offers a maximum instrument capacity of 30 lb with the same rigidity as our larger mounts and minimal flexure. This mount offers every feature an astroimager wants: PEC, an autoguider port, the ability to image across the meridian, and more. NEW dual saddle plate is compatible with narrow CG-5 dovetails and wider CGE dovetail. Also compatible with Vixen format dovetails longer than 100mm, but not compatible with Losmandy D format plates. Accessories included: M42 camera adapter, C-thread camera adapter, and fan battery pack.Optical Tube Info: Optical Design Rowe-Ackermann Schmidt AstrographAperture 203mm (8")Focal Length 400mm (15.74")Focal Ratio f/2.0Central obstruction diameter 93mm (3.66") (46% of aperture diameter)Light Gathering Power (Compared to human eye) 843xResolution (Rayleigh) 0.68 arc secondsResolution (Dawes) 0.57 arc secondsImage Circle 22mm (.86") Ø, 3.15°Useable field 32mm (1.26") Ø, 4.6°, only minimal performance loss at edge of FOVWavelength range 390 - 800 nmSpot size < 4.6 µm RMS across image circleOptical Coatings StarBright XLTOff-axis Illumination 93% at 11mm (.43") off-axisOptical Window 46mm (1.81") ØBack focus with included camera adapter 25mm (.98")Back focus from top of threaded collar 29mm (1.14")Optical Tube AluminumOptical Tube Length 628mm (24.7")Optical Tube Diameter 235mm (9.3")Focuser Ultra-Stable Focusing SystemFinderscope Not includedOptical Tube Weight 17 lbs (7.7 kg)Other Features Air-cooling system, integrated filter mountIncluded items M42 camera adapter, C-thread camera adapter, fan battery packDovetail CGE Dovetail BarMount Info: Mount Type Computerized EquatorialInstrument load capacity 30 lbs (13.6 kg)Height adjustment range (includes mount and tripod) 1118mm - 1626mm (44" 64")Tripod Leg Diameter 50.8mm (2") Stainless SteelLatitude adjustment range 7° - 77°Mount Head Weight 17 lbs (7.71 kg)Accessory Tray YesTripod Weight 18 lbs (8.16 kg)Weight of Counterweights 1 x 12 lbsSlew Speeds 9 slew speeds - max speed 4°/secondTracking Rates Sidereal, Solar and LunarTracking Modes EQ North & EQ SouthGPS N/ADovetail Compatibility Dual saddle plates (CG-5 and CGE saddle)Number of Auxiliary ports 3 Aux ports (1 hand control and 2 AUX ports for optional accessories)Autoguide port YesUSB Port Yes, input on Hand ControlPower Requirements 12V DC 3.5A (tip positive)Motor Drive DC servo motorsAlignment Procedures 2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick AlignPeriodic Error Correction YesComputerized Hand Control NexStar+ hand control with LCD display, 19 fiber-optic backlit LED buttonsNexStar+ Database 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objectsSoftware Celestron's Starry Night Special Edition Software, SkyPortal AppTotal Kit Weight 47 lbs (21.31 kg)Included Items Advanced VX Equatorial Head| Tripod| Accessory Tray|1 x 12 lbs counterweight| NexStar+ Hand Control| DC Power Cable (plugs into cigarette lighter socket)