CELESTRON CGEM II 800 EdgeHD GoTo-Telescope 203/2032mm

SKU: 13074

GTIN: 50234120173

Category: Telescopes

In Stock
Ready for shipment: 0 - 1 business days (DE - int. shipments may differ)

€ 4.499,00

incl. 19% VAT (All Non-EU Countries tax-free or with a valid EU Vat. No.) , (Paket/Parcel)

8” EdgeHD optics
CGEM II computerized equatorial mount
Celestron’s premium StarBright XLT coatings provide maximum light transmission
A 9x50 finderscope, 1.25” mirror diagonal for more comfortable viewing, and 1.25” 40 mm Plössl eyepiece are all included
Made by Celestron, USA

Includes or respectively is compatible with the following Celestron Technologies:

Teleskop-Fernsteuerungs-Software NexRemote™

pcs.

CELESTRON CGEM II 800 EdgeHD GoTo-Telescope

8” EdgeHD optics
CGEM II computerized equatorial mount
Celestron’s premium StarBright XLT coatings provide maximum light transmission
A 9x50 finderscope, 1.25” mirror diagonal for more comfortable viewing, and 1.25” 40 mm Plössl eyepiece are all included
Made by Celestron, USA

Includes or respectively is compatible with the following Celestron Technologies:

Description

CGEM II 800 HD combines Celestron's newly redesigned CGEM II computerized equatorial mount with its acclaimed EdgeHD optical system. With 8 inches of aperture and our premium StarBright XLT coatings, the CGEM II 800 HD gives you over 800 times the light gathering power than the unaided eye and is the lightest and most portable telescope in its class.

See the Universe in HD

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.

True Astrograph Quality

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.

Improved Performance

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.

Mechanical Features

In addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night.

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 50-mesh 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 lens 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.

Individually Tested

Every EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This “final acceptance test” confirms the EdgeHD will perform in the field and deliver high-quality astroimages.

Mount Info

A fresh update to the venerable CGEM mount, the CGEM II has a fresh, attractive, bold appearance and is capable of carrying Celestron’s higher-end SCT optical tubes (up to 11") securely and vibration free, which is ideal for both imaging and visual observing. Capable of holding 40 lbs. of payload and slewing at 5° per second, you will be able to instantly point to any of the celestial objects in the database.

Ergonomic Design

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 trouble free set up.

Innovation

The CGEM II series features Celestron’s innovative Polar alignment procedure called All-Star™. All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM II sure to please astroimagers, is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings.

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. The CGEM II mount has a robust database with over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects. 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.

Videos

AstroFi Telescopes

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How to use Sky Align to align your telescope

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Optical Tube Info
Optical Design	Maksutov-Cassegrain
Aperture	102mm (4.02")
Focal Length	1325mm (52.17")
Focal Ratio	f/13
Focal Length of Eyepiece 1	25mm (.98")
Magnification of Eyepiece 1	53x
Focal Length of Eyepiece 2	10mm (.39")
Magnification of Eyepiece 2	132x
Finderscope	StarPointer™ red dot finderscope
Star Diagonal	1.25" Star Diagonal
Optical Tube	Aluminum
Highest Useful Magnification	241x
Lowest Useful Magnification	15x
Limiting Stellar Magnitude	12.5
Resolution (Rayleigh)	1.37 arc seconds arc seconds
Resolution (Dawes)	1.14 arc seconds arc seconds
Light Gathering Power (Compared to human eye)	212x
Secondary Mirror Obstruction	35mm (1.38")
Secondary Mirror Obstruction by Diameter	34%
Secondary Mirror Obstruction by Area	12%
Optical Coatings	Fully Coated
Optical Tube Length	381mm (15")
Optical Tube Diameter	117mm (4.6")
Optical Tube Weight	6 lbs (2.7 kg)
Dovetail	CG-5 Dovetail bar
Mount Info
Mount Type	Computerized Altitude-Azimuth Single Fork Arm
Instrument load capacity	8 lbs (3.6 kg)
Height adjustment range (includes mount and tripod)	863.6mm - 1371.6mm (34" - 54")
Tripod leg diameter	31.75mm (1.25") aluminum
Mount Head Weight	5 lbs (2.3 kg)
Accessory Tray	Yes. Includes rubberized smartphone or tablet holder
Tripod Weight	5 lbs (2.3 kg)
Slew Speeds	Up to 3°/second
Tracking Rates	Sidereal, Solar, and Lunar
Tracking Modes	Alt-Az, EQ North & EQ South
GPS	N/A
Dovetail Compatibility	CG-5 dovetail
Number of Auxiliary ports	2x Aux port for optional accessories
Autoguide port	No
USB Port	No (only with optional Nexstar+ remote)
Power Requirements	12V DC, 1A (Tip positive)
Motor Drive	DC servo motor
Alignment Procedures	SkyAlign, 3-Star Align, Solar System Align
Periodic Error Correction	No
Computerized Hand Control	Hand control not included (optional)
NexStar+ Database	Optional Nexstar+ hand remote provides over 40,000 objects in the computer's database
Software	Celestron's Starry Night Special Edition Software, SkyPortal App. Each provide over 100,00 objects in their database
Total Kit Weight	16 lbs (7.25 kg)
Included Items	Telescope OTA \| Mount \| Tripod w/accessory tray \| 2x eyepieces \| 1.25" Star diagonal \| 1.25" visual back \| StarPointer™ red dot finderscope \| Battery pouch