Description

The 9.25” EdgeHD Advanced VX (AVX) telescope is a specialized instrument designed for astrograph-quality images that sets a new standard in mid-level telescopes. With its EdgeHD optical tube and the sturdy Advanced VX equatorial mount and tripod, this kit provides unparalleled views of the planets, up-close views of the lunar surface (including craters and maria), and stunning deep sky images.

EdgeHD Optical Design

EdgeHD is an aplanatic, flat field Schmidt optical system that produces aberration-free images across a wide visual and photographic field of view. The optical system reduces more than just off-axis star coma; it provides an astrograph-quality flat focal plane all the way to the edge of the field of view.

EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across the largest imaging sensors available today.

Advanced VX Mount & Tripod

The Advanced VX mount is designed to provide superior performance for smaller telescopes while taking advantage of Celestron’s most advanced technologies: All-Star Polar Alignment, Celestron PWI telescope control software, SkyAlign, and permanently programmable periodic error correction (PPEC).

If you’re an experienced imager, you’ll love taking this portable mount to a dark sky site and enjoying all the conveniences of a larger observatory mount. Or, if you’re 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 mount - The Advanced VX is the smallest of Celestron’s 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 capacity - The payload capacity for the Advanced VX is 30 pounds. It offers a sturdy platform for the 9.25” EdgeHD optical tube, even when paired with optional accessories like StarSense AutoAlign, Focus Motor, a finderscope, and a camera. Celestrons payload capacity does not include the weight of the counterweights.

Dual saddle plate - As 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. This means you can use your Advanced VX mount not only with the 9.25” EdgeHD, but virtually any optical tube within Advanced VX’s weight limit. The mount is compatible with Vixen format dovetails 100mm or longer, but not compatible with Losmandy D format plates (regardless of plate manufacturer).

Software

Celestron PWI Telescope Control: Your Ultimate Astronomy Software - All current Celestron computerized telescopes include Celestron PWI (CPWI), the most advanced astronomy software provided with any consumer-grade telescope. Celestron’s 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 PlaneWave’s 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 applications

Starry Night Software - Also included with your purchase is a free download of Celestron’s 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

The Advanced VX 9.25” EdgeHD comes complete with a 25mm eyepiece, a 1.25” star diagonal, and a 6x30 finderscope. To increase your field of view without sacrificing performance, add the optional EdgeHD reducer lens, bringing your focal ratio down to f/7. An optional Barlow lens can provide additional magnification for high-resolution planetary, lunar, and solar imaging. And, of course, all EdgeHD optical tubes are Fastar-compatible for ultra-fast f/2 wide field imaging. Each EdgeHD tube is fitted with a removable secondary mirror and is opto-mechanically aligned on a laser bench to ensure it is axially symmetric in any configuration.

Technology

Mechanical Features

In addition to EdgeHD’s optimized optical design, the optical tube has been enhanced to make sure you get the most from your optics night after night.

Mirror clutches - Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astroimages. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).
Tube vents - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.
Focal versatility - EdgeHD is the most versatile imaging telescope available today. At its native f/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lens—custom-designed for the 9.25” EdgeHD tube—and you can increase your field of view without sacrificing optical performance. A Barlow gives you added power for high-resolution planetary, lunar and solar imaging.

In addition, all EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third-party lens assembly for ultra-fast f/2 wide field imaging.

Specifications

OPTICAL TUBE INFO:
Optical Design:	EdgeHD
Aperture:	235mm (9.25")
Focal Length:	2350mm (93")
Focal Ratio:	f/10
Focal Length of Eyepiece 1:	23mm (.91")
Magnification of Eyepiece 1:	102x
Finderscope:	9x50
Star Diagonal:	2" with 1.25" adapter
Optical Tube:	Aluminum
Highest Useful Magnification:	555x
Lowest Useful Magnification:	34x
Limiting Stellar Magnitude:	14.4
Resolution (Rayleigh):	.59 arc seconds
Resolution (Dawes):	.49 arc seconds
Light Gathering Power (Compared to human eye):	1127x
Secondary Mirror Obstruction:	85mm (3.35")
Secondary Mirror Obstruction by Diameter:	36%
Secondary Mirror Obstruction by Area:	13%
Optical Coatings:	StarBright XLT
Optical Tube Length:	559mm (22")
Optical Tube Diameter:	271.78mm (10.7")
Optical Tube Weight:	21 lbs (9.53 kg)
Dovetail:	CGE Dovetail bar
MOUNT INFO:
Mount Type:	Computerized Equatorial
Instrument 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 Steel
Latitude adjustment range:	7° - 77°
Mount Head Weight:	17 lbs (7.71 kg)
Accessory Tray:	Yes
Tripod Weight:	18 lbs (8.16 kg)
Weight of Counterweights:	2 x 12 lbs
Slew Speeds:	9 slew speeds - max speed 4°/second
Tracking Rates:	Sidereal, Solar and Lunar
Tracking Modes:	EQ North & EQ South
GPS:	N/A
Dovetail 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:	Yes
USB Port:	Yes, input on Hand Control
Power Requirements:	12V DC 3.5A (tip positive)
Motor Drive:	DC servo motors
Alignment Procedures:	2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick Align
Periodic Error Correction:	Yes
Computerized Hand Control:	2 line x 18 character backlit Liquid Crystal Display, 19 LED backlit buttons, USB 2.0 port for PC connection
NexStar+ Database:	40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Software:	Celestron's Starry Night Special Edition Software, SkyPortal App
Total Kit Weight:	47 lbs (21.31 kg)
Included Items:	Advanced VX Equatorial Head \| Tripod \| Accessory Tray \| 2 x 12 lbs counterweights \| NexStar+ Hand Control \| DC Power Cable (item# 18769) \| Hand Control Holster
Solar Warning	Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result. Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it. Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.