Celestron CGEM II 925 HD
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Celestron CGEM II 925 HD

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Celestron CGEM II 925 HD Product description

  1. EdgeHD Optical Design: The 9.25-inch EdgeHD optical tube is an aplanatic, flat-field Schmidt-Cassegrain design that delivers visibly sharper images across an ultra-wide field of view, free from coma and field curvature. This advanced construction is tailored for both serious visual observation and demanding astrophotography.

  2. CGEM II Equatorial Mount: Paired with the robust and precise CGEM II Computerized German Equatorial Mount, this system provides exceptional stability and tracking accuracy. Its enhanced gearing, PPEC (Permanent Periodic Error Correction), and advanced polar alignment routines ensure pinpoint stars and smooth motions required for long-exposure astrophotography.

  3. Superior Light Gathering: With a substantial 235mm (9.25-inch) aperture, the 925 HD excels in light-gathering capability, revealing faint deep-sky objects like nebulae and galaxies with incredible clarity and brightness. The StarBright XLT optical coatings further maximize light transmission.

  4. Advanced GoTo Functionality: The NexStar+ hand control offers a vast database of over 40,000 celestial objects, making target acquisition effortless. Simply select an object, and the CGEM II mount will automatically slew to it, providing an immersive and accessible stargazing experience for astronomers of all levels.

ABOUT THE CELESTRON CGEM II 925 HD

The Celestron CGEM II 925 HD stands out from other models through its combination of Celestron's renowned 9.25-inch EdgeHD optical tube and the highly capable CGEM II computerized equatorial mount. This advanced Schmidt-Cassegrain telescope is engineered with aplanatic, flat-field optics, which are crucial for eliminating common optical aberrations like coma and field curvature, delivering stunningly wide, flat fields of view that are perfect for both visual observation and high-resolution astrophotography. Its unique construction ensures stars appear sharp and pinpoint across the entire sensor, a critical feature for imaging the cosmos. Crafted from high-quality aluminum and steel components, the CGEM II 925 HD provides superior stability and precision tracking for prolonged exposures. It's a versatile instrument designed for serious astronomers and astrophotographers seeking professional-grade performance and effortless navigation of the night sky.

ABOUT CELESTRON

Celestron, headquartered in Torrance, California, USA, was founded in 1960 and quickly became a pioneer in the optical industry. The company is celebrated for its innovative contributions, particularly the popularization of the Schmidt-Cassegrain telescope design and the introduction of advanced computerized GoTo mounts. Celestron maintains a strong reputation for producing user-friendly yet powerful telescopes, known for their optical clarity and reliable performance. Their philosophy centers on making the wonders of the cosmos accessible to everyone, from beginners to seasoned astrophotographers, through cutting-edge technology and thoughtful design.

MAIN FEATURES

  • Optical Design: Schmidt-Cassegrain (SCT) with EdgeHD (aplanatic, flat-field) optics

  • Aperture: 235mm (9.25 inch)

  • Focal Length: 2350mm

  • Focal Ratio: f/10

  • Mount Type: Computerized German Equatorial Mount (CGEM II)

  • Database: Over 40,000 celestial objects

  • Tracking: Precision GoTo and tracking for astrophotography

  • Optical Tube Weight: Approximately 9.3 kg (20.5 lbs)

  • Mount Head Weight: Approximately 18.1 kg (40 lbs)

  • Tripod Weight: Approximately 7.7 kg (17 lbs)

  • Construction: High-quality aluminum and steel components

  • Power: 12V DC, 2.5A (tip positive)

  • Compatibility: Compatible with various Celestron accessories for imaging and visual use

  • Dovetail Compatibility: CGE-style heavy-duty dovetail bar

WARRANTY

This product is covered by a 2-year global warranty that includes defects in materials and manufacturing under normal use.

IN THE BOX

  • Celestron CGEM II 925 HD Telescope with EdgeHD Optical Tube Assembly (OTA)

  • CGEM II Computerized German Equatorial Mount

  • Stainless Steel Tripod with 2" Legs and Accessory Tray

  • NexStar+ Hand Control

  • 2" StarBright XLT Diagonal with 1.25" Adapter

  • 23mm Luminos Eyepiece (102x)

  • 9x50 Finderscope with Quick-Release Bracket

  • StarPointer Pro Finderscope

  • DC Power Cable (car battery adapter)

General properties

Manufacturer Celestron
Telescopes series Celestron CGEM
Made in -
In production since -
Warranty 2 years
SKU C823076X

Optical properties

Optical design of telescope Schmidt Cassegrain
Lowest (useful) magnification. 37.49 x
Highest (useful) magnification. 611.95 x
Apperent FOV (angular). 0.89 °
Optical tube size - diameter -
Optical tube length 559 mm
Optical tube weight -
Aperture. 259.11 mm
Focal length. 2591.15 mm
Focal ratio. $10.00
Eyepiece 1 - Focal Length 23 mm
Eyepiece 1 . magnification 102x
Eyepiece 2 - Focal Length -
Eyepiece 2 . magnification -
Eyepiece 3 - Focal Length -
Eyepiece 3 . magnification -
Light-gathering power. 1242.65 x
Limitting stellar magnitude. $14.62
Rayleigh Resolution. 0.59 Arc seconds
Dawes Resolution. 0.54 Arc seconds

Reflector properties

Secondary mirror size/diameter. 94.05 mm
Secondary mirror obstruction (by diameter). 93.72 %
Secondary mirror obstruction (by area). 14.33 %

Recording properties

Image capturing Optional
Photo adapter Optional

Mounting properties

Mount type of build CGEM Computerized Equatorial, GoTo
Tripod compliant Yes
Type of tripod Adjustable
Tripod material Stainless steel

Navigation properties

Software for Stellar Navigation All-Star Polar Alignment, NexRemote, NexStar
GoTo Telescope Control Yes
GoTo Telecope Language English
Telescope GoTo control interfaces NexRemote
Telescope Alignment method 1-star, 2-star, Last alignment, Quick align, Solar system
Integrated GPS Optional
Tracking Yes
Track rate Lunar, Sidereal, Solar
Track mode EQ North, EQ South
Telescope Guiding -
Slow motion controller No
Slew Speed Nine Slew Speeds
Com. Port Multi AUX ports, Multi USB ports
Remote Hand Control 16 character Liquid Crystal Display, 19 fiber optic backlit LED buttons, Double line

Physical properties

Power Supply Unit Car battery adapter
Lens coatings StarBright XLT
Type of Focuser 2'' Crayford style with 1.25'' adapter
Eyepiece barrel size 2'' / 50.8 mm
Eyepiece angle 90°
Barlow diverging lens Not Included
Level No
Total gear weight. 1798.97 oz (51.00 kg)
Color White

Special features

Finder - Scope 9x50
Recommended for Advanced
Suitable for observing Astrophotography, Galaxies, Moon, Nebulae, Planets

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