Celestron
NexStar 91/4 GPS
 |
Optical
Design |
91/4" Schmidt-Cassegrain |
Focal
Length |
2350mm f/10 | |
| Finderscope |
9x50 | |
Mount |
Dual Fork Arm | |
Optical
Tube |
Carbon Fiber | |
| Fastar
Compatible |
No | |
| Eyepiece |
1-1/4" -40mm Plossl (59x) | |
| Star
Diagonal/Erect Image Eyepiece |
1-1/4" 90 degrees | |
| Tripod |
Heavy Duty Adjustable | |
| AC
Adapter |
Included | |
| Computer
Hand Control |
Double
line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons |
|
| Hand
Control Ports |
RS-232
communication port on hand control |
|
| Motor
Ports |
Aux Port, Autoguide Ports | |
| Slew
Speeds |
Nine slew speeds | |
| Tracking
Rates |
Sidereal, Solar and Lunar | |
| Tracking
Modes |
Altazimuth, EQ North & EQ South | |
| Alignment
Procedures |
AutoAlign,
2-Star Alignment, Quick Align |
|
| Database
|
40,000+ objects | |
| GPS
|
16 channel |
 |
Highest
Useful Magnification |
555x |
| Lowest
Useful Magnification |
34x | |
Limiting
Stellar Magnitude |
14.4 | |
| Resolution:
Rayleigh |
.59 arcseconds | |
Dawes
Limit |
.49 arcseconds | |
| Photographic
Resolution |
200 lines/mm | |
Light
Gathering Power |
1127x unaided eye | |
| Field
Of View: standard eyepiece |
.88 degree | |
Linear
FOV (@1000 yd.) |
46 ft. | |
| Secondary
Mirror Obstruction |
3.35"
(13% by area, 36% by diameter) |
|
Optical
Coatings |
StarBright Coating | |
| Optical
Tube Length |
22" | |
Telescope
Weight |
58 lb. | |
| Tripod/Mount
Weight |
19 lb. |