GENERAL FEATURES
- 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
EdgeHD FEATURES
- EdgeHD aplanatic, flat field SCT optics for pinpoint stars to the
edge of the largest imaging sensors and widest eyepieces. Lightweight
and portable
- Aluminum optical tube with tube vents featuring an integrated
95-micron mesh filter allows hot air to be released from behind the
primary mirror. Mirror support knobs hold the mirror in place and reduce
image shift during imaging
- Versatile design accommodates 3 focal ratios: native f/10, f/7 with
the addition of a focal reducer, or ultra-fast f/2 imaging with a
removable secondary mirror and third-party accessories
COMPUTERIZED MOUNT FEATURES
- 40 lbs 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
- Permanent Programmable Periodic Error Correction (PEC) corrects periodic tracking errors inherent to all worm drives
- 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
- RS-232 communication port on 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
Introducing the EdgeHD Telescope Series, Celestron’s new flagship
telescope line... and the CGEM-II, Celestrons new 'GEM' of a mount!
Celestron has taken another bold step as the market leader in
telescopes with the introduction of their latest series of high-end
telescopes. Since the moment they first started producing Schmidt
Cassegrain optical systems, Celestron has continued to design
high-quality optics with pride. After years of research and development,
they have now taken one giant step!
The EdgeHD is Celestron’s
latest innovation that will surely be the system of choice for the
serious astro-imagers. The new Edge High Definition telescope series
features an Aplanatic Schmidt optical system that produces pinpoint star
images all the way to the edge of the field. Some optical systems
currently on the market may produce coma free images. But there is a
difference.... the optical difference. Not only is the Celestron Edge
coma free, but it also has a built in field flattener to ensure sharp
focus all the way to the edge of the field, producing true Astrograph
quality images. This results in pinpoint, High Definition star images
throughout your astro photograph.
These superior features
combined with Celestron's recently introduced CGE Pro and CGEM mounts
make the new Celestron EdgeHD series the new gold standard in Astro
Imaging. The Edge HD is an aplanatic Schmidt telescope designed to
produce 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, but also to give an astrograph quality flat focal
plane all the way to the edge of the field of view.
Many
optical designs that advertise themselves as “astrograph” quality
actually only produce pinpoint stars across a curved focal plane. While
this may be acceptable for visual observing, stars will appear out of
focus at the edge when used with a flat chip sensor of a digital camera.
Edge HD optics produce a focal plane more than three-times flatter than
a standard Schmidt Cassegrain telescope and dramatically flatter than
other competing coma-free designs. This guarantees you visibly sharp
stars across some of the largest CCD chips available today.
Now let's talk about Celestron quality...
The Celestron CGEM-II mount 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.
Ergonomic Design - The Celestrom CGEM-II mount 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 Celestron CGEM-II series has a new innovative
Polar alignment procedure called All-Star (patent pending). 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. Furthermore, the new
model of mount is equipped with a dual saddle capable of mounting both
predominant kinds of Dovetail.
Performance - For objects near the Meridian (imaginary line
passing from North to South), the Celestron CGEM-II mount 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, 400 user defined programmable objects and enhanced
information on over 200 objects.
Celestron's CGEM-II mount is the next level of GEM mounting, an all
around improvement to their previous CGEM model with more to it than
just a new paintjob and a saddle!
Superior mount performance combined with 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. When it comes to the Celestron HD series coupled with
Celestron’s StarBright XLT coating group on every surface, EdgeHD optics
gives you maximum light throughput across the widest visual and
photographic spectrum... It's a vision you'll never forget.
Optical Tube Info:
|
|
|---|
| Optical Design |
EdgeHD |
| Aperture (mm) |
203.2 mm (8 in) |
| Focal Length |
2032 mm (80 in) |
| Focal Ratio |
10 |
| Focal Length of Eyepiece 1 (mm) |
40 mm (1.57 in) |
| Magnification of Eyepiece 1 |
51 x |
| Finderscpoe |
9x50 |
| Star Diagonal |
1.25 |
| Optical Tube |
Aluminum |
| Highest Useful Magnification |
480 x |
| Lowest Useful Magnification |
29 x |
| Limiting Stellar Magnitude |
14 |
| Resolution (Rayleigh) |
0.69 arc seconds |
| Resolution (Dawes) |
0.57 arc seconds |
| Light Gathering Power (Compared to human eye) |
843 x |
| Secondary Mirror Obstruction |
2.7 in (69 mm) |
| Secondary Mirror Obstruction by Diameter |
34% |
| Secondary Mirror Obstruction by Area |
11% |
| Optical Coatings |
StarBright XLT |
| Optical Tube Length |
17 in (432 mm) |
| Optical Tube Weight |
14 lbs (6.35 kg) |
| Dovetail Compatibility |
CGE Mount |
| Mount Info: |
|
| Mount Type |
German Equatorial Mount |
| Tripod |
2” Steel tripod with graduated markings on lower section |
| Dovetail Mount |
Directly connects to both CG-5 & CGE dovetail bars |
| Payload Capacity |
40 lbs |
| Latitude Range |
15º – 70º |
| Power Requirements |
12 VDC, 3.2 amps |
| Ports |
1x Hand control port, 1x Auxiliary Port, 1x Auto guider port, 1 USB 2.0 port (on hand control) |
| Motor Drive |
Low cog DC servo motors |
| Slew Speeds |
9 slew speeds |
| Tracking Rates |
Sidereal, Solar and Lunar |
| Tracking Modes |
EQ North and EQ South |
| Alignment Procedures |
AutoAlign, 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align |
| Computerized Hand Control |
Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons, USB 2.0 port for PC connection |
| Database |
40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects |
| Mount Weight |
40 lbs |
| Tripod Weight |
20 lbs |
| Weight of Counterweight |
1 x 17 lbs counterweight |
| Total Weight of Mount Kit |
77 lbs |
In the Box
- Celestron CGEM-II 800 EdgeHD Aplanatic SCT Telescope
- 40mm Omni Plossl
- 9X50 Finderscope
- 1.25" Star Diagonal
- CGEM Mount
- Adjustable, Stainless Steel Tripod
- Accessory Tray
- Car Battery Adapter
- Counterbalance
- NexRemote Controller
- Cables
- Software
- RS-232 Communication Port
- NexStar Computer Control
- Permanent Programmable Periodic Error Correction (PPEC)
- Servo Motors
- Encoders
- Visual Back
[ITEMPRICE]