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Explore Scientific

Explore Scientific FirstLight 102 mm Achromatic Refractor Telescope with Twilight I Alt-Az Mount – Complete Beginner Observation Kit

Explore Scientific FirstLight 102 mm Achromatic Refractor Telescope with Twilight I Alt-Az Mount – Complete Beginner Observation Kit

$699.99
$699.99
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The Explore Scientific FirstLight 102 mm Achromatic Refractor Telescope with the adjustable Twilight I Altitude-Azimuth Mount is a highly capable and beginner-friendly observing system. With a 102 mm aperture and a long 1000 mm focal length (f/9.8), this refractor delivers bright, crisp, and high-contrast views of the Moon, planets, star clusters, and many deep-sky objects.

Its fully multi-coated doublet optics minimize chromatic aberration and improve image clarity, making it ideal for visual astronomy. The Twilight I mount provides smooth, stable manual movement with easy positioning and tracking. This complete package includes a Plössl eyepiece, 2" diagonal, red-dot finder, and smartphone adapter—giving new observers everything needed to start exploring the night sky immediately.

Key Features

High-Performance Optics

  • 102 mm achromatic doublet objective for sharp, detailed images

  • 1000 mm focal length with an f/9.8 focal ratio, excellent for planetary and lunar viewing

  • Fully multi-coated lenses for improved brightness and contrast

Stable and Easy-to-Use Mount

  • Twilight I adjustable Alt-Azimuth mount with smooth manual motion

  • Dual-axis slow-motion control cables for precise tracking

  • Heavy-duty stainless steel tripod with adjustable height

Complete Accessory Kit

  • 25 mm Plössl eyepiece

  • 2" 90° diagonal for comfortable viewing

  • Red-dot finder for quick and easy target acquisition

  • Smartphone adapter for basic astrophotography

  • Downloadable astronomy software included

Specifications

Specification Details
Model Number FL-AR1021000MAZ01
Optical Design Achromatic Refractor (Doublet)
Aperture 102 mm (4")
Focal Length 1000 mm
Focal Ratio f/9.8
Coatings Fully Multi-Coated
Focuser 2.5" Hexagonal Rack-and-Pinion
Diagonal 2" 90°
Eyepiece Included 25 mm Plössl
Finder Red-dot
Mount Type Twilight I Alt-Azimuth
Tripod Adjustable Stainless Steel
Smartphone Adapter Included
Max Useful Magnification Approx. 175×
Included Accessories Eyepiece, diagonal, finder, smartphone adapter, software
Warranty Limited 1-Year Warranty
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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
Most orders ship within 5 business days. You'll receive tracking information within 24 hours of your order leaving the warehouse. For full details, visit our Shipping Policy.
Orders cancelled after 48 hours are subject to a $20 administration fee. If your order has shipped, you are responsible for return shipping costs. Refunds are issued to the original payment method. See our full Refund Policy for details.
Yes! If you find a lower price at another authorized online retailer within 6 months of your purchase, we'll refund the difference. Learn more on our Price Match Guarantee page.
All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
Please inspect your package on arrival and note any damage when signing for delivery. Send photos to info@telescopewolves.com and we'll process a claim on your behalf.
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