| OPTICAL TUBE INFO: | |
| Optical Design | EdgeHD |
| Aperture | 234.95mm (9.25″) |
| Focal Length | 2350mm (93″) |
| Focal Ratio | f/10 |
| Focal Length of Eyepiece 1 | 23mm (0.91″) |
| Magnification of Eyepiece 1 | 102x |
| Finderscope | 9×50 |
| Star Diagonal | 2″ with 1.25″ adapter |
| Optical Tube | Aluminum |
| 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 |
| Light Gathering Power (Compared to human eye) | 1127x |
| Secondary Mirror Obstruction | 85mm (3.35″) |
| Secondary Mirror Obstruction by Diameter | 36% |
| Secondary Mirror Obstruction by Area | 13% |
| Optical Coatings | StarBright XLT |
| Optical Tube Length | 559mm (22″) |
| Optical Tube Diameter | 271.78mm (10.7″) |
| Optical Tube Weight | 21 lbs (9.53 kg) |
| Dovetail | CGE Dovetail Bar |
Celestron, EDGEHD, OTA
EDGEHD 9.25 Optical Tube Assembly
₹310,625.00 excl. 18% GST
- Experience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge of today’s largest imaging sensors and widest eyepieces
- Aluminum optical tube with tube vents featuring an integrated 50-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 2 focal ratios: native f/10 or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories
- Celestron’s premium StarBright XLT coatings provide maximum light transmission
- A 9×50 finderscope, 2” mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2″ eyepiece are all included
Available on backorder
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