The FirstLight AR102mm Refractor is a versatile, high-performance telescope designed for sharp, contrast-rich views of the Moon, planets, and bright deep-sky targets. With a 102mm aperture and a 1000mm focal length (f/9.8), this achromatic refractor excels at high-magnification tasks while still offering the ability to explore star clusters and nebulae.
Its longer focal ratio reduces chromatic aberration, enhancing image sharpness for both beginners and seasoned astronomers. Outfitted with a 2.5" HEXagonal rack-and-pinion focuser, the scope offers precise and stable focusing—even with heavier eyepieces or imaging gear. The package includes a 2" 90° diagonal, 25mm Plössl eyepiece, red dot finder, and smartphone adapter—making it a complete grab-and-go solution right out of the box.
This is an ideal scope for observers seeking clean, detailed views and dependable performance in a classic refractor format.
CA Residents: Prop 65 WARNING(S)
🌟 Features & Benefits
- 102mm aperture gathers enough light for detailed planetary, lunar, and deep-sky observation
- 1000mm focal length (f/9.8) offers higher magnification potential with improved chromatic correction
- 2.5" HEXagonal rack-and-pinion focuser ensures smooth, stable focusing and supports 2" and 1.25" accessories
- Fully multi-coated optics maximize brightness and contrast by reducing light loss
- 2" 90° diagonal provides a comfortable viewing angle and supports wide-field eyepieces
- 25mm Plössl eyepiece delivers low-to-medium power wide-angle views
- Red dot finder simplifies target acquisition and alignment
- Smartphone adapter lets you capture and share your favorite views
- Optional polar scope available for equatorial alignment when used with compatible mounts
🌌 Who It’s For
- Beginner to intermediate observers seeking crisp views of the Moon, planets, and clusters
- Refractor enthusiasts looking for a longer focal length instrument with reduced chromatic aberration
- Astronomers interested in visual observation and basic smartphone astrophotography
- Anyone looking for a portable, low-maintenance telescope with solid optics and accessories
🔭 What You’ll Be Able to See
- Detailed features on the Moon such as craters, maria, and ridges
- Planetary detail including Saturn’s rings, Jupiter’s bands, and Mars’ surface features
- Bright open clusters like the Pleiades (M45) and Beehive Cluster (M44)
- Brighter deep-sky targets such as the Orion Nebula and Andromeda Galaxy under dark skies
🎒 What’s Included
- Explore Scientific FirstLight AR102mm Optical Tube
- 2.5" HEXagonal Rack-and-Pinion Focuser
- 2" 90° Diagonal
- 25mm Plössl Eyepiece
- Red Dot Finder
- Smartphone Adapter
- Dust Caps and Documentation
Specs
| Item Number | FL-AR1021000 |
|---|---|
| Optical Diameter | 102mm |
| Focal Length | 1000mm |
| Focal Ratio | f/9.8 |
| Lens Coatings | Fully Multi-Coated |
| Magnification | 175x |
| Eyepiece (Included) | 25mm Plössl |
| Diagonal | 2" 90° Diagonal |
| Focuser | 2.5" HEXagonal Focuser |
| Finder Scope | Red Dot Viewfinder |
| Included Accessories | Smartphone Adapter, Downloadable Software |
| Optional Accessories | Polar Scope |
Warranty Information
This product is covered by a Limited One-Year USA Warranty, valid when registered within 60 days of purchase. To activate your warranty, please visit the Explore Scientific website and complete the registration form at: