From $299.99
2 stores
The Explore Scientific AR102 is a classic air-spaced doublet achromatic refractor delivering sharp, high-contrast views of the Moon, planets, and bright deep-sky objects. Its 102mm aperture and fast f/6.5 focal ratio strike an excellent balance between light-gathering power and portability, making it ideal for visual astronomy, public star parties, and grab-and-go observing sessions. Built with fully multi-coated optics and premium components including a dual-speed 2" Crayford focuser, dielectric diagonal, and collimatable lens cell, this diffraction-limited refractor offers exceptional optical quality at a fraction of the cost of apochromatic refractors.
| Focal length | 663 mm |
| Focuser Type | 2 inch Dual-Speed Crayford |
| Dovetail Plate | 45mm Wide Vixen-Style |
| Optical design | Crown and Flint Glass Doublet |
| Limiting Magnitude | 12.5 |
| Aperture | 102 mm |
| Weight | 5.2 lb |
| Resolution | 1.14″ |
| Lens Coating | Fully Multi-Coated |
| Finderscope | 8x50 Non-illuminated Straight-Through |
| Diagonal Mirror Coating | 99% Dielectric |
| Focal ratio | f/6.5 |
| Tube Length with Dew Shield | 25.5 mm |
| Focuser Diameter | 2 mm |
| Model Number | DAR102065-01 |
| Telescope Type | Air-Spaced Doublet Achromatic Refractor |
| Tube Diameter | 101 mm |