Celestron Telescope Accessories

Celestron 90° Star Diagonal (1.25″)

  • Fits telescopes with 1.25″ focusers or visual backs, 90° viewing angle, best for observing objects overhead
  • Accepts standard 1.25″ eyepieces, Barlow lenses, and other accessories with a 1.25″ insert barrel
SKU: C/94115-A Categories: ,


The Celestron 90° Star Diagonal 1.25″ slides into the focuser (1.25″) of your refractor or catadioptric telescope and accepts standard 1.25″ eyepieces, allowing you to view objects more comfortably. A diagonal that is angled at 90º helps avoid neck strain when looking through through the eyepiece.

Please note that a 90º diagonal will display images that are right side up, but left to right orientation will be reversed.