Celestron PowerSeeker 76AZ Refractor

Optical Design
Refractor

Aperture (mm)
76 mm (2.99 in)
Focal Length
700 mm (28 in)
Focal Ratio
9.21
Focal Length of Eyepiece 1 (mm)
20 mm (0.79 in)
Magnification of Eyepiece 1
35 x
Focal Length of Eyepiece 2 (mm)
4 mm (0.16 in)
Magnification of Eyepiece 2
175 x
Barlow Lens
3 x
Finderscope
5x24
Mount Type
Altazimuth
Accessory Tray
No-Tool Tray with Eyepiece holder
Tripod
Aluminum
Highest Useful Magnification
180 x
Lowest Useful Magnification
11 x
Limiting Stellar Magnitude
11.9
Resolution (Rayleigh)
1.83 arc seconds
Resolution (Dawes)
1.53 arc seconds
Light Gathering Power (Compared to human eye)
118 x
Apparent Field of View
1.2 °
Linear Field of View (@1000 yds)
62 ft (19 m)
Secondary Mirror Obstruction
0.75 in (19 mm)
Secondary Mirror Obstruction by Diameter
25%
Secondary Mirror Obstruction by Area
6.28%
Optical Coatings
Aluminum
Optical Tube Length
27 in (686 mm)
Total Telescope Kit Weight
14 lbs (6.35 kg)
Warranty
2-year Telescope Warranty