The Advanced VX 6" f/8 Refractor Telescope from Celestron is a complete astroimaging platform including a 6" refractor optical tube, 20mm eyepiece, Advanced VX computerized German Equatorial mount, adjustable stainless steel tripod, and NexStar hand controller. By pairing the refractor tube with their redesigned Advanced VX mount, Celestron has created an optical instrument built to satisfy stargazers and astrophotographers.
Celestron's 6" refractor boasts a flatter field of view and brighter deep sky objects than comparably-sized catadioptrics. Unlike Schmidt-Cassegrain and Newtonian optical designs, refractors have an all-glass optical path without a secondary mirror obstructing incoming light. When it comes to lunar, planetary, and wide field imaging, refracting optics transmit faint detail like no other. This configuration of the Advanced VX telescope has a 2" focus tube that enables use of both 2" and 1.25" accessories.
To accommodate the added weight common with refractor optical tubes, the Advanced VX mount includes two eleven-pound counterweights to center the OTA and mount over the tripod. Maintaining the OTA's center of gravity over the tripod prevents excessive strain on the servo motors and helps deliver smooth and precise telescope tracking. The 6" refractor's 1200mm focal length combined with a counterbalanced OTA-mount system translates into crisp long exposure photographs of planetary and deep space objects alike.
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.
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 the 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 a 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 6" optical tube, NexStar hand controller, Advanced VX German-Equatorial mount and tripod, this telescope includes a 9x50 finderscope for easy object acquisition and a 20mm eyepiece equaling 60x magnification when mounted. This collection of components makes the Advanced VX 6" Refractor a full-featured telescope for a wide range of stargazing and astroimaging applications.