Orion’s SkyQuest XX16g GoTo Truss Tube Dobsonian Telescope has an f/4.4 focal ratio. It comes with a 2″ dual-speed Crayford focuser, 28mm and 12.5mm eyepieces, and a 42,000-object database.

The University of Sheffield has released the very first photos of space ever taken with a telescope that has been made using a 3D printer.

Orion’s SkyQuest XT12g GoTo Dobsonian has a 42,000-object database. Its f/4.9 mirror features low-expansion glass. The unit includes a dual-speed 2″ focuser, a 28mm 2″ DeepView eyepiece, and ...