http://www.celestron.com/portal/celestron-powerseeker-76-telescope.html
PowerSeeker 76 Telescope
Item # 21044
| Aperture | 76 mm (2.99 in) |
|---|---|
| Focal Length (mm) | 700 mm (28 in) |
| Focal Ratio | 9.21 |
| Eyepiece 1 (mm) | 20 mm (0.79 in) |
| Magnification 1 | 35 x |
| Eyepiece 2 (mm) | 4 mm (0.16 in) |
| Magnification 2 | 175 x |
| Barlow Lens | 3 x |
| Finderscope | 5×24 |
| Mount | Altazimuth |
| Accessory Tray | No-Tool Tray with Eyepiece holder |
| CD ROM | «The Sky®» Level 1 |
| Tripod | Aluminum |
| Weight (lbs) | 14 lbs (6.35 kg) |
| Highest Useful Magnification | 180 x |
| Lowest Useful Magnification | 11 x |
| Limiting Stellar Magnitude | 46 |
| Resolution (Rayleigh) | 1.83 arc seconds |
| Resolution (Dawes) | 1.53 arc seconds |
| Photographic Resolution | 217 line/mm |
| Light Gathering Power | 118 x |
| Angular Field of View (deg) | 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) |
| Telescope Weight | 14 lbs (6.35 kg) |