Reprising much of the design of classic reflectors used by the most famous historical astronomers, the Celestron FirstScope is a 3" reflector meant for tabletop viewing that's also a nice decorative scope. Movements are super-simple; just rotate the ball bearing turntable base where you need to, loosen the up/down locking knob, and point the tube to the area of the sky you're interested in. A pair of basic eyepieces supplied provide 15x & 75x magnification, but you can use any 1.25" eyepiece. Grab a star chart and set out to explore the sky as the greats from centuries past did with the FirstScope.
Key Features
- Desktop style Dobsonian-style altazimuth mount.
- Tube housing adorned with names of famous astronomers
- Simple rack and pinion 1.25" focuser
- Light enough to travel almost anywhere
- Supplied with 15x ( 25° apparent field ) and 75x ( 33° apparent field ) eyepieces
- Both a cool keepsake and a practical viewing instrument
Specifications
| Optical Design |
Newtonian Reflector |
| Optical Lens Diameter |
3.0" ( 76mm ) |
| Focal Length |
300mm |
| Focal Ratio |
f/3.9 |
| Maximum Useful Magnification |
150x |
| Resolving Power |
1.82 |
| Optical Tube Dimensions |
10.5" ( 26.7cm ) in Length [unspecified diameter] |
| Mount Type |
Dobsonian-style Altazimuth |
| Eyepiece Barrel Diameter |
1.25" |
| Finderscope |
None |
| Tripod |
None |
| Motor |
No |
| GO-TO Capability |
No |
| PC Compatible |
No |
| Power Source |
None |
| Weight |
4.3 lbs ( 1.96kg ) |
