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Explore Scientific  |  SKU: FL-AR102100MAZ01

Explore FirstLight 102mm f/9.8 Doublet Refractor Telescope with Twilight I Mount


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Estimated delivery in 3-5 business days via UPS or FedEx

Ships from US warehouse in 1-2 business days

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Explore FirstLight 102mm f/9.8 Doublet Refractor Telescope with Twilight I Mount



  • 102mm / 4" Refractor OTA
  • 1000mm Focal Length
  • f/9.8 Focal Ratio
  • Fully Multi-Coated Optics
  • Hexagonal Rack-and-Pinion Focuser
  • 2" 90° Diagonal
  • 25mm Eyepiece
  • Twilight I Alt-Az Mount
  • Dual-Axis Slow Motion Cables
  • Red-Dot Finderscope
  • Smartphone Eyepiece Adapter
  • Adjustable-Height Stainless Steel Tripod


With the versatile FirstLight 102mm f/9.8 Refractor Telescope with Twilight I Mount you get a complete observation rig for viewing the Moon, planets, meteor showers, and bright deep sky objects.

This package is great for beginners and features fully multi-coated optics with anti-reflection coatings to produce brighter and clearer images with more accurate colors.

The included Twilight I mount comes with dual-axis control cables that allow users to track objects as they move across the night sky. Plus, the stainless steel tripod provides a stable observation platform for comfortable viewing.

As an added benefit, this package includes an adapter that allows you to use your smartphone to easily capture and share the beauty unfolding in your eyepiece. With Firstlight, the only thing you need to provide is a desire to discover.

FirstLight AR102mm White Tube Refractor with 1000mm focal length f/9.8 telescope with fully multi-coated lenses on a Twilight 1 Alt/Az mount; 2.5" Hexagonal Focuser; 2" 90° Diagonal; Plossl 25mm eyepiece; and HD132 Red-dot Finder; Smartphone Camera adapter.

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Explore FirstLight 102mm Doublet Refractor Telescope with Twilight I Mount - FL-AR1021000MAZ01 812257018116

Explore FirstLight 102mm f/9.8 Doublet Refractor Telescope with Twilight I Mount





102 mm | 4"

Focal Length

1000 mm

Focal Ratio


Field of View



Fully multi-coated

Barrel Size





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