E-Lux Eyepiece - 2" 40mm Eyepiece Earth is our home and

Earth is our home and currently the only planet in the Universe where life is known to exist

Power Type 8 AA batteries or external 12V power supply

Software Polar Align: “All-Star Polar Alignment” allows quick and very precise polar alignment

Focal Length 663mm   Focal Ratio f/6

Unlike other lithium-ion power packs in this price range

E-Lux Eyepiece - 2" 40mm Eyepiece Earth is our home and40mm Kellner eyepiece designed for 2 focusers 3 element lens design with fully multi coated optics Wide 56 apparent field of view allows you to view larger celestial objects Long eye relief (36mm) for comfortable viewing Threaded to accept most 2 filters Description Get more light to your eye and enjoy the low power, wide field views of Celestrons E lux 2 eyepiece. Designed to be used with any telescope with a 2 focuser, the Celestron E lux eyepiece