Optical Design
:
Newtonian Reflector
Aperture
:
127 mm (5 in)
Focal Length
:
1000 mm (39.37 in)
Focal Ratio
:
7.87
Eyepiece 1
:
20 mm (0.79 in)
Magnification 1
:
50 x
Eyepiece 2
:
4 mm (0.16 in)
Magnification 2
:
250 x
Barlow Lens
:
3 x
Finderscope
:
5x24
Mount
:
German Equatorial
Tripod
:
Aluminum
Accessory Tray
:
No-Tool Tray with Eyepiece holder
CD ROM
:
"The SkyX" Planetarium Software
Weight
:
17 lb (7.71 kg)
Limiting Stellar Magnitude
:
13
Resolution (Rayleigh)
:
1.1 arcsec
Resolution (Dawes)
:
0.91 arcsec
Photographic Resolution
:
254 line/mm
Light Gathering Power
:
329 x
Angular Field of View
:
0.8 °
Linear Field of View (@1000 yds)
:
43 ft (13.11 m)
Optical Coatings
:
Aluminum
Secondary Mirror Obstruction
:
1.6 in (40.64 mm)
Secondary Mirror Obstruction by Area
:
10.2 %
Secondary Mirror Obstruction by Diameter
:
32 %
Optical Tube Length
:
20 in (508 mm)