Manufacturer: Celestron
Product number: EHD9-CGEM

EUR 4.795,00RRP EUR 5.245,00you save 8.6% (EUR 450,00)


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Celestron 925 EHD 9.25" f/10 Telescope
The 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.

The Celestron XLT multi-coating enhances constrast and brightness even further, for astrophotography as well as for observation. We recommend the EdgeHD for astrophotographers and for dedicated observers who want to use a large aperture as mobile unit.

The EdgeHD 925 is ideal for mobile operation and offers very good sharpness even on moon and planets. It is a portable all-round telescope with very good performance in all fields of amateur astronomy and astrophotography.

The Celestron EdgeHD Telescope advantages:
Wide and fully corrected field for astro photography - flat and free of coma.
Unrestricted visual suitability
Main mirror lock - prevents the mirror from shifting
Main mirror ventilation for shorter cool-down time
Every HD telescope is Fastar compatible and can be turned into a f/2 Schmidt Camera.
With the StarBright XLT, Celestron disposes of one of the best coatings we know. Thus offering the HD telescopes a very bright and full-contrast picture.
Easy Collimation: Guarantees ideal performance every time. Edge HD’s precision-machined mechanics and a spherical secondary mirror make collimation simple and accurate.



The Celestron CGEM II GoTo mount is the perfect base for the EdgeHD telescope.
The stable GoTo mount is desgined for telescopes up to 11" aperture, it still offers many reserves for heavy accessories, large finders, guide scopes, etc. The mount is especially suitable for astrophotographic use.
Precise GoTo control with more than 40,000 objects in the database
Massive latitude adjustment with big knurled knobs for adjusting azimuth and latitude
Innovative All-Star polar alignment aid for perfect guiding results
Autoguider port
Tandem mode allows to star align the mount even when positioned for tandem scope use
No meridian flip - able to track up to 30° past the meridian allowing seamless imaging
Internal cable laying - no cable tangle
Fully remote-enabled via USB port
Losmandy and Vixen style saddle plate
Stable hight-adjustable stainless steel tripod - extendable up to 140 cm, height index marks on the lower section


... More information about the Celestron CGEM II GoTo mount



Optics type:EdgeHD (derivred from SCT)
Aperture:235 mm
Focal length:2350 mm
Focal ratio:f/10
Maximum useful magnification:555x
Limiting visual magnitude:14.4 mag
Resolution (Rayleigh):0.59"
Resolution (Dawes):0.49"
Diametrical obstruction:85.09 mm (36.2%)
Tube length:559 mm
Tube weight:9.53 kg
Distance for optimal sharpness in field:146 mm from the rear support surface of the 2" SC thread to the sensor
Mount type:Equatorial GOTO Mount
Colour:Black
Motor control:Computer controller with NexStar technology and database with 40,000 objects
Motors:DC Servo motors with optical encoders
Power Supply:12 V 3.2 A - cigarrette lighter cable included
Alignment:Stars, many solar system objects
Slewing and correcting rates:5°/sec, 2°/sec, 1°/sec, 64x, 16x, 8x, 4x, 1x,0.5x
Tracking Rates:Lunar, sidereal, solar
PEC:yes, permanent (PPEC)
Ports:Hand controller, ST-4 compatible autoguider port, Aux for updates, USB 2.0, 12 V
Upgrade:via internet
Weight mount head:18.1 kg
Weight capacity up to (depending on application and demand):approx. 18 kg
Polar finder:Optional
Telescope connection:Saddle plate Losmandy and Vixen style
Number of counterweights:2 (7.7 kg and 5 kg)
Counterweight rod:20 mm diameter
Tripod:Stainless steel tripod with 2" leg diameter
Tripod height:140 cm extended
Tripod weight:9.1 kg
Weight mount with tripod:39.5 kg incl. counterweights
Total weight:51 kg (113 lbs)
Optical tube assembly
9x50 finder
2" diagonal mirror with adapter to 1.25"
23 mm 2" ultra-wide angle eyepiece
Losmandy style dovetail bar
Mount head
NexStar hand controller
Software
Cigarrette lighter cable
2x counterweight
2" stainless steel tripod with eyepiece tray

All-Star polar alignment procedure allows you to accurately polar align the mount using any star, even if the celestial pole cannot be seen.


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