Explore Scientific


Explore Scientific FirstLight 80mm Achromatic Refractor with Twilight Nano Equatorial Mount

Built for more experienced astronomers, theExplore Scientific FirstLight AR80mm f/11 Refractor Telescope takes astronomic observation to the next level by providing a complete setup for viewing the Moon and planets.

Its manual equatorial mount has precise Right Ascension (RA) and Declination indicators to find your subjects and dual slow-motion cables for tracking, allowing you to find just about any visible object by just knowing its celestial coordinates.

After the scope has been properly polar aligned, and the subject found, it can be easily tracked by making slight adjustments to the RA axis.


  • Anti-reflection fully multi-coated optics improve light transmission to increase overall image contrast, sharpness, and color rendition
  • Aluminum optical tube with white anodized finish
  • Sturdy and strong rack-and-pinion focuser
  • Large 40mm drawtube ensures that larger imaging sensors will be completely covered during astrophotography or imaging

Included Accessories

Reducer adapter:
  • 40mm-to-1.25" reducer allows the use of smaller eyepieces in the drawtube
  • Removes easily for prime-focus astrophotography or imaging
  • 1.25" diameter barrel
  • Accepts most 1.25" astronomical eyepiece filters
  • 25mm focal length eyepiece yields 36x magnification
  • 1.25" barrel and eyepiece holder
  • 90° angle places head in a comfortable viewing position, especially when the optical tube assembly is aimed at or near the zenith
  • Star diagonal design corrects image horizontally, but not vertically
Smartphone adapter:
  • Attaches over eyepiece
  • Allows any smartphone to be used for astrophotography
  • Quickly and easily share photos or stream videos
  • Unmagnified for fast subject acquisition
  • Red-dot center aiming point won't obstruct small subjects during alignment or navigation
  • Red illumination protects night-adjusted vision
Type Achromatic
Focal Lenght 900mm
Focal Ratio f/11.25
Optical Diameter 80mm
Magnification 125x
Lens Coatings Full Coating
Adapter 40mm draw tube focuser; 1.25" 90° Diagonal
Eyepiece 25mm Plössl
Mount type EXOS Nano EQ3
Mount Equatorial