The Celestron FirstScope Signature Series: Moon by Robert Reeves is a compact Dobsonian-style Newtonian reflector with a spherical glass mirror and 76mm (2.99") of aperture. It was developed with lunar imager Robert Reeves. Its wide field of view shows the Moon's mountains and craters, and it can also be used to view the Milky Way, open star clusters, Saturn's rings and deep-sky objects such as the Orion Nebula.
The telescope is a manual tabletop Dobsonian. To use it, take it out of the box, insert an eyepiece, and rotate the azimuth axis toward the object you want to view. It is compact and lightweight, so it is easy to carry along on a camping trip, picnic or hike.
It comes with a custom wrap that highlights 10 lunar features to explore, including Tycho, Plato and Copernicus. Robert Reeves' Lunar Landscape eBook covers crater sizes, how maria are formed and the natural history of the Moon.
- Optical Design
- Newtonian reflector
- Aperture
- 76mm (2.99")
- Focal Length
- 300mm (12")
- Focal Ratio
- f/3.95
- Eyepiece 1
- 20mm (0.79"), 15x
- Eyepiece 2
- 4mm (0.16"), 75x
- Not Included
- Barlow lens, finderscope, star diagonal
- Useful Magnification
- Lowest 11x, highest 180x
- Limiting Magnitude
- 11.9
- Resolution
- Rayleigh 1.83 arc seconds; Dawes 1.53 arc seconds
- Light Gathering
- 118x compared to the human eye
- Secondary Mirror
- 28mm (1.1") obstruction; 37% by diameter, 14% by area
- Optical Coatings
- Aluminum with SiO2
- Optical Tube
- Plastic
- Tube Dimensions
- Length 266mm (10.5"); diameter 95.25mm (3.75")
- Tube Weight
- 1.4 lbs (0.64 kg)
- Mount Type
- Manual tabletop Dobsonian
- Slew Speeds
- Manual
- Software
- Celestron Starry Night Basic Edition, SkyPortal app
- Total Kit Weight
- 4.3 lbs (1.95 kg)
- Extras
- Custom lunar wrap with 10 features, Lunar Landscape eBook