Celestron
Firstscope 76 EQ Newtonian Reflector
 |
Optical
Design |
76mm (3") reflector |
Focal
Length |
600mm f/8 | |
| Finderscope |
Starpointer | |
Mount |
Equatorial | |
| Eyepiece |
1-1/4" -20mm (35x) | |
Eyepiece |
1-1/4" -10mm (70x) | |
| Star
Diagonal/Erect Image Eyepiece |
n/a | |
Accessory
Tray |
yes | |
| Tripod |
Aluminium | |
CD
ROM |
The Sky L1 |
 |
Highest
Useful Magnification |
180x |
Limiting
Stellar Magnitude |
11.9 | |
| Resolution:
Rayleigh |
1.82 arcseconds | |
Dawes
Limit |
1.53 arcseconds | |
| Photographic
Resolution |
217 lines/mm | |
Light
Gathering Power |
118x unaided eye | |
| Field
Of View: standard eyepiece |
1.4 degrees | |
Linear
FOV (@1000 yd.) |
75 ft. | |
| Secondary
Mirror Obstruction |
1.2" (40% by diameter, 16% by area) | |
Optical
Coatings |
Aluminium | |
| Optical
Tube Length |
27" | |
Telescope
Weight |
15 lb. |