Celestron

050234120180

     Celestron's CGEM II 925 HD combines the newly redesigned CGEM II computerized equatorial mount with its acclaimed EdgeHD optical system. With an optical tube assembly weighing only 9.53kg, this celestial telescopegives 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, the CGEM II 925 HD is a premier astroimaging telescope. See the Universe in HD | True Astrograph Quality: 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 off-axis star coma and provide an astrograph-quality flat focal plane all the way to the edge of the field of view. Experience excellent optical performance with EdgeHD’s flat-field and coma-free optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces Sleek aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter that allows hot air to be released from behind the primary mirror. Sturdy mirror support knobs hold the mirror in place and reduce image shifts during imaging Versatile design accommodates 2 focal ratios: native f/10 or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories Computerised Mount Features | Improved Performance: A fresh update to the estemed CGEM mount, the CGEM II has a fresh and attractive appearance and is capable of carrying Celestron’s higher-end SCT optical tubes (up to 11") securely and vibration free. Ideal for both imaging and visual observing, this mount is capable of holding heavy paylods up to 18kg. 18kg payload capacity Dual-fit Vixen/CG-5 and Losmandy/CGE dovetail saddle 2" steel legs with height index marks for quick leveling USB 2.0 port on hand control for direct links to a PC via ASCOM supported software. 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects Internal cabling throughout for worry-free remote operation Low cog DC Servo motor with integrated optical encoders offer smooth, quiet operation Able to track past the meridian allowing seamless imaging Permanent periodic error corrections allow users to train out the worm gears periodic errors once, while the mount retains the PEC recordings. Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits Built-in polar alignment program to polar align on any star in the sky Longer clutch levers to make tightening and loosening of clutches easier Custom database lists of all the most famous deep-sky objects by name and catalog number Solar System alignment method allows to view the moon and planets during the day Custom Rate 9 feature allows to set maximum slew rate Tandem mode allows to star align the mount even when positioned for tandem scope use USB hand control to control the telescope via a personal computer Includes NexRemote telescope control software, for advanced control of telescope via computer Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings GPS-compatible with optional SkySync GPS Accessory Mechanical Features: Mirror clutches - Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. 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. Fastar 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 your size 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. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f/2 wide field imaging. Improved Ergonomics: CGEM II was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and straightforward set up.  Integrated handles for easy transport and portability New ergonomically designed dovetail clamping knobs Innovative and improved polar alignment adjustment system All-new ergonomic adjustment knobs with reduced friction for smooth and easy positioning under full loads. Stationary latitude knob with a newly-designed linkage system greatly reduces the amount of friction when polar aligning the mount. Redesigned azimuth adjustment with low-friction Teflon bearings to make adjustments easy under full load. No more binding, rough adjustments! Easy to read latitude scale The CGEM II series features Celetron's innovative Polar alignment procedure (All-Star™). All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. The Permanent Periodic Error Correction (PEC) - which allows users to train out the worm gears periodic errors while the mount retains the PEC recordings - is another great characteristic of the CGEM II mount and will definitely make astrophotographers happy! Performance: For objects near the Meridian (imaginary line passing from North to South), the CGEM II will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. Celestron's CGEM II mount is the perfect fit between the Advanced Series and CGE Series, offering the portability of the Advanced Series and the precision of the CGE. Compatible with:   Optical Tube Info: Optical Design EdgeHD Aperture  235mm (9.25") Focal Length 2350mm (93") Focal Ratio f/10 Focal Length of Eyepiece 1 23mm (0.91") Magnification of Eyepiece 1 102x Finderscope 9x50 Star Diagonal 2" with 1.25" adapter Optical Tube Aluminium Highest Useful Magnification 555x Lowest Useful Magnification 34x Limiting Stellar Magnitude 14.4 Resolution (Rayleigh) 0.59 arc seconds Resolution (Dawes) 0.49 arc seconds Secondary Mirror Obstruction 85mm (3.35") Optical Coatings StarBright XLT Optical Tube Length 559mm (22") Optical Tube Diameter 271.8mm (10.7") Optical Tube Weight 9.53kg Dovetail CGE Dovetail Bar Mount Info: Mount Type Computerised Equatorial Instrument Load Capacity 18kg Height adjustment range (includes mount and tripod) 1346mm - 1651mm Tripod Leg Diameter 50.8mm  Latitude adjustment range 15° - 70° Mount Head Weight 18.14kg Accessory Tray Yes Tripod Weight 9kg Weight of Counterweights 1 x 17lbs (8kg) 1x 11 lbs (5kg) Slew Speeds 9 slew speeds - max speed 4.5°/second Tracking Rates Sidereal, Solar, and Lunar Tracking Modes EQ North & EQ South GPS N/A Dovetail Compatibility Dual saddle plates (Vixen and CGE saddle) Auxiliary ports 2 Aux ports (Hand control port and Aux port for optional accessories) Autoguide port Yes USB Port Yes, input on Hand Control Power Requirements 12V DC, 3.2 amps 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 Double line, 18 character Liquid Crystal Display; 19 fiber optic backlit LED 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 Included Items CGEM II Equatorial Head Tripod Accessory Tray 1 x 17 lbs (8kg) counterweight 1 x 11 lbs (5kg) counterweight  NexStar+ Hand Control DC Power Cable Hand Control Holster About CelestronCelestron was founded by Tom Johnson whose first telescope design was a simple 6-inch reflector, built for his young son. He gradually progressed to making larger scopes in more sophisticated designs. Today, the Celestron company is an industry leader in designing and manufacturing optical equipment including telescopes (computerised and non-computerised), binoculars, spotting scopes and its accompanying accessories. Celestron's legacy spans 50 years, and has grown to enjoy recognition from amateurs to serious astronomers globally. The company seeks to remain innovative by growing its product offerings, while supporting science education around the world.