The Pinwheel Galaxy in Ursa Major | Schulman Telescope

The Pinwheel Galaxy in Ursa Major | Schulman Telescope

The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy 21 million light-years away from Earth in the constellation Ursa Major. It was discovered by French astronomer Pierre Méchain in 1781.

Technical Details

Optics: Schulman 32-inch RCOS Telescope

Camera: SBIG AC4040BSI

The 0.81 m (32 in) Schulman Telescope is a Ritchey-Chrétien reflector built by RC Optical Systems and installed in 2010. It is operated by the Mount Lemmon SkyCenter and is Arizona's largest dedicated public observatory. The Schulman Telescope was designed from inception for remote control over the Internet by amateur and professional astrophotographers worldwide. It is currently the world's largest telescope dedicated for this purpose.

Image Credit & Copyright: Travis Deyoe / Mount Lemmon SkyCenter / University of Arizona

Image Date: May 22, 2023

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