Explore Scientific AR102 Air-Spaced Doublet Refractor - DAR102065-02
The Explore Scientific AR Air-Spaced Doublet Series telescopes are classic air-spaced, crown-and-flint, doublet achromatic f/6.5 refractors with a superior-class optical figure. Whether you choose the AR102 (4"), AR127 (5") or AR152 (6") model, you will be impressed by the stunning images revealed to you at the eyepiece, and all at a small fraction of the price you’d pay for a comparably sized apochromatic refractor, and you'll love the light weight of this instrument at only 11.5 lbs.
Designed to handle the rigors of public star parties and educational outreach, the Explore Scientific AR Series telescopes come with heavy-duty, high quality components, including a 2-inch Two-Speed Crayford Focuser with Compression , a 99% Reflective Dielectric-Coated 2-inch Diagonal Mirror with 1.25-inch Eyepiece Adapter, the Explore Scientific Hybrid Finder Scope Base installed with an 8X50 non-illuminated straight-through finderscope and quick release bracket, and a cradle ring assembly with 45mm wide dovetail plate (Vixen style). Just add a few eyepieces and the alt-azimuth or equatorial mount of your choice and you’ll be ready to discover the Universe!
Interferometic data on your newly purchased and registered Explore achromatic refractor is available upon request after 120 days of ownership. Please contact Customer Service for more information.
Specs
Item Number | DAR102065-02 |
Focal Length | 663mm |
Focal Ratio | f/6.5 |
Limiting Magnitude | 12.5 |
Resolution | 1.14 arcsec |
Tube Length w/ Dew Shield | 25.5"; 698mm |
Diameter | 101mm |
Weight | 11.5 lbs; 5.2 kg |
Dovetail Plate | 45mm Wide (Vixen-Style) |
Warranty
Limited Warranty is one year, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when product is registered within 60 days of purchase. Click Here to register.
CA Residents: Prop 65 WARNING(S)

At The Space Store, we want your journey with us to be stellar! If your recent purchase isn’t quite the right fit for your mission, you have 30 days to initiate a return.
Here’s how it works:
- Returning Your Item: Please ensure that your product is in the same condition as when you received it and undamaged. Then, simply return it within 30 days of your purchase.
- Inspection & Refund: Once we receive your return, our team will inspect the item and process your refund. The refund will be credited to the original payment method used. For credit card payments, it may take 5 to 10 business days to appear on your statement.
Important notes for your Mission Log:
- If the product is damaged or if it’s been more than 30 days since your purchase, we won’t be able to offer a refund.
- Please note that special orders, such as the Replica Apollo Suit, cannot be canceled once ordered.
- Art Prints, Astronaut Suits, and Models are also non-cancelable once shipped.
We're here to help if you have any questions or need assistance with your return. Your satisfaction is our priority!