Celestron Advanced VX 8" SCT

8" f/10 Schmidt-Cassegrain Optics: 843x Light Gathering with StarBright XLT

The 8" Schmidt-Cassegrain optical tube is a benchmark for serious amateur astronomy, delivering 843 times the light gathering power of the human eye in a tube only 17" long. The 2032mm focal length provides the image scale necessary to resolve fine details like the Cassini Division in Saturn's rings and the primary dust lanes in the Andromeda Galaxy (M31). Unlike reflector designs, the SCT's closed tube and corrector plate minimize air currents and eliminate the chromatic aberration common in refractors, making it a superb choice for high-magnification astroimaging.

• StarBright XLT Coatings: Celestron's proprietary optical coatings increase light transmission across the visual spectrum, resulting in brighter images and higher contrast, which is critical for resolving faint planetary features and dim deep-sky objects.
• Dawes' Limit Resolution: With a theoretical resolution of 0.57 arc seconds, this telescope can split tight double stars and reveal intricate detail on the Moon and planets under steady seeing conditions.
• Portable Power: Weighing just 12.5 lbs, the optical tube is exceptionally portable, making trips to dark sky sites manageable without sacrificing the aperture needed for serious observing and imaging.

Advanced VX Mount: 30 lb Capacity and 2" Steel Tripod

The Advanced VX (AVX) mount is engineered from the ground up for astroimaging, providing a stable, reliable platform with a 30 lb instrument capacity. This leaves ample overhead for the 12.5 lb optical tube plus a DSLR camera, guide scope, and other accessories. The robust tripod, with 2" diameter stainless steel legs, ensures vibrations are dampened quickly—a critical factor for sharp, long-exposure images.

• Dual Saddle Plate: The mount includes a dual-format saddle that accepts both narrow CG-5 (Vixen-style) and wider CGE (Losmandy-style) dovetail bars, allowing you to use virtually any optical tube within the mount's weight limit.
• Wide Latitude Range: A 7° to 77° latitude range means the AVX can be properly polar aligned anywhere from the Arctic Circle to the Equator, making it a reliable travel companion for eclipse chasing or observing from different hemispheres.
• DC Servo Motors: Precision DC servo motors with encoders provide smooth tracking and quiet operation, capable of slewing across the sky at up to 4 degrees per second to locate your next target.

NexStar+ GoTo: 40,000+ Objects with All-Star Polar Alignment

At the heart of the AVX is the NexStar+ hand controller, your gateway to a database of over 40,000 celestial objects. After a simple alignment procedure, the mount can automatically find and track any object in its catalog. Celestron's All-Star Polar Alignment routine allows you to achieve a precise polar alignment without needing to see Polaris, using any bright star in the sky—a huge advantage when observing from a location with an obstructed northern view.

• Periodic Error Correction (PPEC): For imagers, the mount's firmware includes permanently programmable periodic error correction. This allows you to train out the inherent periodic error in the worm gear, leading to more accurate guiding and rounder stars in your images.
• Multiple Tracking Rates: The mount can track at Sidereal, Solar, and Lunar rates, ensuring that objects from distant galaxies to our own Moon remain centered in the eyepiece or on your camera sensor.

CPWI & Starry Night: Observatory-Level Telescope Control

The Advanced VX 8" SCT includes a powerful software suite to plan your observations and control the telescope directly from a PC. Celestron's PWI (CPWI) software, co-developed with PlaneWave Instruments, provides a graphical planetarium interface for precise GoTo control. It features PointXP mount modeling, which allows you to build an alignment model with over 100 points for observatory-grade pointing accuracy across the entire sky. You also receive a free download of Starry Night Special Edition, a comprehensive desktop planetarium to explore what's visible on any given night and learn more about the 40,000+ objects in your telescope's database.

AVX 8" SCT vs. Other Optical Tubes: The All-Rounder Advantage

While the Advanced VX mount can carry a variety of telescopes, the 8" Schmidt-Cassegrain represents the ideal balance of aperture, focal length, and portability for this platform. It is often chosen over other designs for its unique combination of strengths.

• vs. a 6" Newtonian: While a 6" Newtonian is less expensive, the 8" SCT gathers significantly more light (843x vs. ~450x) and has a much longer focal length for planetary viewing, all in a tube that is half the length and easier to manage in wind and for transport.
• vs. a 4" APO Refractor: A high-end refractor offers textbook-perfect star images, but the 8" SCT provides four times the light-gathering area. For observing and imaging faint galaxies and nebulae, the sheer aperture of the SCT is the decisive advantage.
• vs. the 9.25" SCT: The larger 9.25" SCT offers more aperture, but its weight pushes the AVX mount closer to its imaging limit. The 8" SCT keeps the total weight well within the mount's sweet spot, ensuring greater stability and tracking accuracy for astrophotography.