Beschrijving
Celestron CGEM II 925 HD
Algemene kenmerken
- 9.25 inch EdgeHD Optics
- CGEM II Computer gestuurde Equatoriale montering
- Celestron’s premium StarBright XLT coatings
- 9×50 zoeker, als hulpmiddel om de objecten te vinden
- Extra stevige 2 inch dikke stalen driepoot maat accessoire plaat
HD kenmerken
- Nieuw aplanatic Schmidt telescope ontwerp, welke een aberration-free beeld produceert over een heel breed gezichtsveld
- Mirror tension locks houdt de primary spiegel op zijn plek en vermijd beeld verschuiving
- Koeling ventilatoren welke de hete lucht achter de hoofdspiegel wegsluizen
- Fastar compatible for fast f/2 imaging
| Optical Tube Info: | |
|---|---|
| Optical Design | EdgeHD |
| Aperture (mm) | 234.95 mm |
| Focal Length | 2350 mm |
| Focal Ratio | f/10 |
| Focal Length of Eyepiece 1 (mm) | 23 mm |
| Magnification of Eyepiece 1 | 102 x |
| Finderscpoe | 9×50 |
| Star Diagonal | 2″ w/ 1.25″ adapter |
| Optical Tube | Aluminum |
| Highest Useful Magnification | 555 x |
| Lowest Useful Magnification | 34 x |
| Limiting Stellar Magnitude | 14.4 |
| Resolution (Rayleigh) | 0.59 arc seconds |
| Resolution (Dawes) | 0.49 arc seconds |
| Light Gathering Power (Compared to human eye) | 1127 x |
| Secondary Mirror Obstruction | 3.35 in (85 mm) |
| Secondary Mirror Obstruction by Diameter | 36% |
| Secondary Mirror Obstruction by Area | 13% |
| Optical Coatings | StarBright XLT |
| Optical Tube Length | 559 mm |
| Optical Tube Weight | 9.53 kg |
| Dovetail Compatibility | CGE Mount/Losmandy style |
| 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, 1 x 11 lbs counterweights |
| Total Weight of Mount Kit | 77 lbs |
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