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Celestron CGEM II 925 EdgeHD Schmidt-Cassegrain Telescope

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Price:
$1,399.00
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Availability:
in stock
Shipping:
$60.00 (Fixed shipping cost)
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1 unit(s)
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Product Description

Celestron CGEM II 925 EdgeHD Schmidt-Cassegrain Telescope

 

CGEM II 925 HD combines Celestron's newly redesigned CGEM II computerized equatorial mount with its acclaimed EdgeHD optical system. With over 9 inches of aperture and our premium StarBright XLT coatings, the CGEM II 925 HD gives you over 1000 times the light gathering power than the unaided eye.  Designed to give diffraction limited performance and offer more resolution than the 800 with less weight than the 1100, the CGEM II 925 HD is a premier astroimaging telescope.

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

Many optical designs that advertise themselves as "astrographs" actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. 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 some of the largest CCD chips available today. Learn more about EdgeHD technology.

Superior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron's StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.

Warranty

This product is serviced and supported by its manufacturer according to the terms and conditions included in the packaged product. Orion's limited warranty does not apply. Please contact the manufacturer directly for technical support.

 

Celestron CGEM II 925 EdgeHD Schmidt-Cassegrain Telescope

 

Best for viewing Fainter deep sky

Best for imaging Solar, lunar, planetary & Messier objects

User level

Advanced

Optical design

Schmidt-Cassegrain

Optical diameter

235mm

Focal length

2350mm

Focal ratio

f/10.0

Eyepieces Celestron Luminos 23.0mm (2")

Magnification with included eyepieces 102x

Resolving power

0.50arc*sec

Lowest useful magnification

34x

Highest useful magnification

555x

Highest theoretical magnification 555x

Limiting stellar magnitude

14.4

Finder scope 9x50

Focuser Internal

Secondary mirror obstruction 85mm

Secondary mirror obstruction by diameter 36%

Secondary mirror obstruction by area 13%

Mount type Equatorial

Astro-imaging capability

Lunar, planetary & long exposure

Dovetail bar system

Yes

Computerized compatibility

Go-To included

Alignment procedure AutoAlign, 2-Star, Quick Align, 1-Star, Last Alignment, Solar system

Number of objects in database 40000

Tracking rates Sidereal, Solar and Lunar

Motor speeds 9 slew speeds

Power requirement 12-volt DC - 3.2A (tip positive)

PEC

Yes

GPS

Sold separately

Backlash compensation Yes

Latitude range

15-70

Polar-axis scope Sold separately

Counterweights One 17 lb., one 11 lb.

Tube material Aluminum

Tripod material Steel

Tripod leg diameter 2.00 in.

Length of optical tube 22.0 in.

Weight, optical tube 21.0 lbs.

Weight, mount/tripod 77.0 lbs.

Weight, fully assembled 98.0 lbs.

Warranty

Two year


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