 |
Celestron
Firstscope 76 Tabletop Newtonian Reflector
 |
Optical
Design |
76mm
(3") reflector |
Focal
Length |
600mm
f/8 |
|
Finderscope |
5x24
right angle |
Mount |
Altazimuth
Tabletop |
|
Eyepiece |
.96"
-20mm H (30x) |
Eyepiece |
.96"
-4mm H (150x) |
|
Star
Diagonal/Erect Image Eyepiece |
n/a |
Accessory
Tray |
n/a |
|
Tripod |
Tabletop |
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 |
250
lines/mm |
Light
Gathering Power |
118x
unaided eye |
|
Field
Of View: standard eyepiece |
1.7
degrees |
Linear
FOV (@1000 yd.) |
87.5
ft. |
|
Secondary
Mirror Obstruction |
1.1"
(37% by diameter, 13% by area) |
Optical
Coatings |
Aluminium |
|
Optical
Tube Length |
11" |
Telescope
Weight |
4
lb. |
|
 |
 |
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Copyright 2003-2006
Astro Scientific Centre Pte Ltd
