| Optical Design |
EdgeHD |
| Aperture |
203.2mm (8") |
| Focal Length |
2032mm (80") |
| Focal Ratio |
f/10 |
| Image Circle |
42mm |
| Optical Coatings |
StarBright XLT |
| Highest Useful Magnification |
480x |
| Lowest Useful Magnification |
29x |
| Limiting Stellar Magnitude |
14 |
| Resolution (Rayleigh) |
0.69 arc seconds |
| Resolution (Dawes) |
0.57 arc seconds |
| Light Gathering Power |
843x (Compared to human eye) |
| Secondary Mirror Obstruction |
64mm (2.5") |
| Secondary Mirror Obstruction by Diameter |
31% |
| Secondary Mirror Obstruction by Area |
9.77% |
| Optical Tube |
Aluminum |
| Optical Tube Length |
432mm (17") |
| Optical Tube Weight |
14 lbs (6.35 kg) |
| Dovetail |
CG-5 Dovetail bar |
| Eyepiece 1 |
40mm Plössl (51x) |
| Eyepiece 2 |
13mm Plössl (156x) |
| Finderscope |
StarPointer Pro™ finderscope |
| Star Diagonal |
1.25" Star Diagonal |
| Mount Type |
Computerized Altitude-Azimuth Single Fork Arm |
| Instrument Load Capacity |
25 lbs (11 kg) |
| Motor Drive |
DC servo motors |
| Slew Speeds |
9 slew speeds - max speed 4°/second |
| Tracking Rates |
Sidereal, Solar and Lunar |
| Tracking Modes |
Alt-Az, EQ North and EQ South |
| Dovetail Compatibility |
CG-5 saddle plate |
| Tripod |
Stainless Steel, 38.1mm (1.5") Leg Diameter |
| Power Requirements |
Internal 9.6V, 4.5Ah lithium iron phosphate battery (LiFePO4) |
| Number of Auxiliary Ports |
4 |
| USB Port |
Yes, Hand Control input and Mount output |
| Periodic Error Correction |
No |
| Alignment Procedures |
StarSense AutoAlign, SkyAlign, 1-Star, 2-Star, Solar System, etc. |
| Computerized Hand Control |
StarSense hand control: 2 line x 18 character backlit LCD, 19 LED backlit buttons, USB 2.0 port |
| Database |
Over 40,000 objects |
| Software |
Celestron Starry Night Special Edition and SkyPortal App |
| Total Kit Weight |
42 lbs (19.05 kg) |
| Mount Head Weight |
16 lbs (7 kg) |
| Tripod Weight |
12 lbs (5.44 kg) |
| Height Adjustment Range |
1193.8mm - 1752.6mm (47" – 69") |
| Tube outer diameter |
238mm (9.37") |
| Required back focus |
133.35mm (5.25") from rear cell thread |
| Rear / camera-side connection |
SCT 2"-24tpi Male |
| Focuser type |
Moving primary mirror |
| Matching reducer |
EdgeHD 800 0.7x Reducer (#94242) |