Celestron FirstScope Signature Series Moon by Robert Reeves Telescope
Celestron has partnered with renowned lunar photographer Robert Reeves to create this special addition to the popular FirstScope family: the FirstScope Signature Series: Moon by Robert Reeves. This high-quality Dobsonian-style telescope is equipped with a spherical glass mirror and a generous 76mm aperture. With its wide field of view, the FirstScope delivers bright, detailed images of the Moon’s rugged terrain–revealing mountains, craters, and valleys in sharp clarity. Beyond lunar exploration, you can also sweep across the Milky Way, study open star clusters, admire Saturn’s rings, or view classic deep-sky objects such as the Orion Nebula.
Designed as an ideal entry-level telescope, the FirstScope is both lightweight and portable. Setup is effortless–just take it out of the box, insert an eyepiece, and you’re ready to begin observing. To move across the sky, simply rotate the azimuth axis toward the object you wish to see. Astronomy doesn’t get much more straightforward–or more portable–than with the FirstScope.
Thanks to its compact build, the FirstScope Signature Series is easy to carry along on camping trips, picnics, or hikes. When not in use, it serves as a stylish decorative piece that looks right at home on a bookshelf or desk.
Explore the Moon
Take the opportunity to get familiar with our nearest celestial neighbor. This Robert Reeves edition of the FirstScope features a custom wrap highlighting 10 key lunar landmarks such as Tycho, Plato, and Copernicus. To enhance your learning, the telescope also includes Robert Reeves’ Lunar Landscape eBook, which dives deeper into crater dimensions, the formation of maria, the Moon’s geological history, and other fascinating insights.
About Robert Reeves
Robert Reeves began photographing the Moon back in 1959, during the early days of the U.S. space program’s focus on lunar exploration. Since then, he has become a leading figure in lunar imaging and an accomplished author on astrophotography. From his home observatory in Texas, Reeves uses Celestron telescopes to capture lunar images far sharper than those achieved by professional astronomers during the Apollo era. To learn more about Robert Reeves, visit his Team Celestron page, or for his personal thoughts on having a telescope in the Signature Series.
Technical Specifications 
Specification |
Details |
Optical Information |
Optical Design |
Newtonian Reflector (Spherical Primary Mirror) |
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 |
Barlow Lens |
Not Included |
Finderscope |
Not Included |
Star Diagonal |
Not Included |
Highest Useful Magnification |
180x |
Lowest Useful Magnification |
11x |
Limiting Stellar Magnitude |
11.9 |
Resolution (Rayleigh) |
1.83 arc seconds |
Resolution (Dawes) |
1.53 arc seconds |
Light Gathering Power |
118x (compared to human eye) |
Secondary Mirror Obstruction |
28mm (1.1") |
Obstruction by Diameter |
37% |
Obstruction by Area |
14% |
Optical Coatings |
Aluminum with SiO₂ |
Mechanical Information |
Optical Tube |
Plastic |
Tube Length |
266mm (10.5") |
Tube Diameter |
95.25mm (3.75") |
Tube Weight |
1.4 lbs (0.64 kg) |
Dovetail |
N/A |
Mount Information |
Mount Type |
Manual Tabletop Dobsonian |
Slew Speeds |
Manual |
Software & Kit Information |
Software |
Celestron Starry Night Basic Edition, SkyPortal App |
Total Kit Weight |
4.3 lbs (1.95 kg) |
Included Items |
Optical Tube | Dobsonian Mount | 4mm & 20mm Eyepieces | Free Lunar Landscape PDF Download by Robert Reeves
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☀️ Solar Warning:
➠ Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result..
➠ Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.
➠ Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.