Celestron Advanced VX 8" f/10 EdgeHD Telescope
- 8" / 203mm Aperture, f/10 Focal Ratio
- 480x Magnification, 2032mm Focal Length
- EdgeHD Aplanic Schmidt Optical Design
- StarBright XLT Optical Coating
- 40mm Eyepiece, 9x50 Finderscope
- Advanced VX German Equatorial GoTo Mount
- All-Star Polar Alignment
- NexStar+ Hand Controller
- Pre-Loaded 40,000 Object Database
- Adjustable Stainless Steel Tripod
|Optical Design||Aplanic Schmidt-Cassegrain|
|Aperture||8" (203 mm)|
|Focal Length||2032 mm|
|Highest Useful Magnification||480.0x|
|Resolution||0.69 arcsec (Rayleigh), 0.57 arcsec (Dawes)|
|Finderscope||9 x 50|
|Eyepiece Barrel Diameter||1.25"|
|Eyepiece||40 mm (51x magnification)|
|Optical Tube Length||17" (43.2 cm)|
|Optical Tube Weight||13 lb (5.9 kg)|
|Mount Type||German Equatorial|
|Power Supply||12 VDC, 3.5 A|
|Altitude / Latitude Adjustment||7 - 77�|
|Motor||DC servo motor, digitally encoded low-cog drive|
|Load Capacity||30 lb (13.6 kg)|
|Counterweight||(1) 12 lb (5.4 kg)|
|Tracking Method||EQ North, EQ South|
|Tracking Rates||Sidereal, solar, and lunar|
|Slew Speed||9 speeds, 4� per sec (maximum)|
|Alignment||Solar System align, Quick align, Last align, 2-star align, 1-star align|
|Communication Port||(2) AUX ports, Autoguider|
|Onboard Celestial Object Database||40,000 objects (upgradeable)|
|Total Weight||59 lb (27 kg)|
|Package Weight||82.0 lb|
|Box Dimensions (LxWxH)||0.1 x 0.1 x 0.1"|
The Advanced VX 8" f/10�EdgeHD�Telescope from Celestron is a complete�astroimaging platform�including�an 8"�Aplanic Schmidt-Cassegrain optical tube, 40mm eyepiece, Advanced VX computerized German Equatorial mount, adjustable stainless steel�tripod, and NexStar hand controller. By pairing�the�8" EdgeHD�tube with their redesigned Advanced VX mount, Celestron has created a high-performance�optical instrument�ready for�deep sky observation and image capture. The fusion of lightweight materials, compact design, and astroimaging technology�equip this telescope with the portability and functionality to satisfy�advanced amateurs�and�demanding astrophotographers.
The EdgeHD optical design, like other Schmidt-Cassegrains,�utilizes a system of lenses and mirrors to�produce long focal lengths�with a relatively compact tube length.�This configuration of the�EdgeHD optical tube boasts a 2032mm focal length using a tube less than 2 ft long. In addition to the compact�design,�EdgeHD optical tubes are also lightweight for their size. Housing the optical system inside an aluminum tube not only�minimizes flexure and helps equalize the temperature inside the tube, it also reduces excess weight, making the�8" EdgeHD�a manageable 13 lbs.
What�sets the EdgeHD optical tube apart from other Schmidt-Cassegrain designs is the coma-free image quality specifically optimized for astrophotography. All catadioptric devices�suffer from distortions of color and field geometry, and these defects�become more problematic at high magnification. Celestron optical engineers devised an aplanic Schmidt-Cassegrain design that�not only reduces off-axis star coma and�controls chromatic and geometric distortions,�it also transmits a flat focal plane that is ideal for capturing�images�using a digital camera. By transmitting a flat focal plane onto the flat imaging sensor,�starlight will be round and crisp even along the�edges of the captured image.�The EdgeHD features superior edge performance, higher resolution, and greater resolving power compared to Celestron's previous Schmidt-Cassegrain optical tubes.
Celestron's StarBright XLT coating system uses multiple layers of�proprietary lens and mirror coatings to optimize the light transmission of each lens and maximize the reflection of the primary and secondary mirrors. The XLT�coatings were engineered specifically for astroimaging purposes, using layers of highly-reflective aluminum, SiO2 (quartz), and TiO2 (Titanium Dioxide) mirror coatings to�accurately�replicate the colors of the visible spectrum, as well as anti-reflective MgF2 (Magnesium Fluoride) and HfO2 (Hafnium Dioxide) lens coatings to transmit a wider band of visible wavelengths. The result is an f/10�optical�system that transmits�more color faithful images than Celestron's previous StarBright-coated systems. Further improving the performance of the�EdgeHD optical system is a Water White glass corrector lens that is capable of up to 97% light transmission when�finished with the XLT anti-reflective coatings.
Celestron's Advanced VX�German-Equatorial mount is an integrated�telescope support, alignment and guiding system�optimized for astrophotography. Celestron engineered the Advanced VX mount from the ground up to deliver the�functionality�and affordability required by astroimagers�on a budget. This telescope mount delivers some of the features found on more sophisticated German Equatorial mounts but without the added bulk or�cost associated with more robust�options. The Advanced VX mount is�designed�to accommodate�an optical tube weighting up to 30 lb, enough payload capacity�for�most Schmidt-Cassegrain OTAs with up to an 8" aperture.
The core technology�driving the Advanced VX mount�is Celestron's�All-Star Polar Alignment.�This�alignment�system�features�a 2-Star�alignment mode that�uses�multiple guide stars�to�assist�tracking across the night sky while keeping the optical tube parallel to the Earth's axis of rotation. Maintaining alignment with�either celestial pole while following the path of guide stars provides a high degree of pointing and tracking accuracy. Digitally-encoded low-cog DC servo motors�drive telescope movements on both axes in fine increments that�keep the observed (or photographed)�object centered in the�field of view.�This level of precision�reduces optical aberrations and minimizes star trails, which translates into�improved image quality�and�sharper photographs.
Complementing the Advanced VX's alignment and tracking capability�is the mount's permanently programmable periodic error correction that eliminates recurring track errors�inherent to all�worm drives. Additionally, a 7-77� latitude range enables extended observations�and photo exposures by�allowing the telescope to track passed the meridian without the meridian flip common with German Equatorial mounts.
Included with the Advanced VX mount is the�NexStar hand controller that�will�slew the telescope to�any planetary, stellar,�or nebulous object�in�its pre-loaded database�at the touch of a button. The NexStar controller software is flash upgradeable, which allows�operating system updates and even�refinements to�telescope-specific functions. This computerized mount is also compatible with�Celestron's proprietary NexRemote telescope control software, which�enables the observer to control telescope�using their personal computer.
This fully-integrated telescope mounting system also includes an adjustable�stainless steel tripod that has two-inch�diameter�legs, locking spreader, and caddy for the NexStar hand controller.�The combination of�digitally encoded servo motors, broad tracking latitude, and an array of�sophisticated alignment and tracking�technology equip the Advanced VX with the mechanical precision needed�to observe and photograph�any nearby�or deep sky object.
In addition to the�EdgeHD optical tube, NexStar hand controller, Advanced VX German-Equatorial mount and tripod,�this telescope includes�a DSLR-ready�visual back compatible with 1.25" accessories, a�9x50 finderscope for�easy object identification, a 40mm eyepiece�equaling 51x magnification when mounted, and a 1.25" star diagonal for more comfortable viewing when observing objects high above the horizon. This collection of components makes the Advanced VX 8"�EdgeHD a full-featured telescope for a wide range of stargazing and astroimaging applications.
- EdgeHD Optical Tube Assembly
- Aplanic Schmidt-Cassegrain optical design, aluminum construction
- StarBright XLT multi-coated lenses and mirrors
- SCHOTT glass lens elements
- 8" (203mm) aperture, f/10 light gathering
- 2032mm focal length, 480x maximum magnification
- 40mm eyepiece with 51x magnification
- Dual ball bearing focus screw
- Dual optical tube cooling�vents
- Visual back for�1.25" accessories or DSLR
- Spherical secondary mirror for easy and accurate collimation
- FASTAR compatible tube has removable secondary mirror for f/2.8, wide FOV�imaging
- Advanced VX German Equatorial Mount
- Computerized go-to capability
- 30 lb (13.6kg) payload capacity
- 7-77� latitude range for tracking�passed meridian
- Permanently programmable periodic error correction
- All-Star Polar Alignment with 2-Star alignment mode
- Eq North / Eq South tracking modes, Sidereal / Solar / Lunar tracking rates
- Digitally-encoded low-cog DC servo motors on both axes
- Dedicated Autoguider communication port
- Two AUX communication ports
- Includes 12" counterweight bar with 12 lb weight
- NexStar+ Hand Controller
- Pre-loaded 40,000 object database
- Flash upgradeable operating system
- LED-backlit interface buttons
- RS-232 serial communication port
- Selectable�language programming (English, French, German, Italian, Spanish)
- Stainless steel construction
- 2" diameter upper�leg
- 44-64" (112.8-162.6 cm) height adjustment
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