Pinwheel Galaxy M101

Pinwheel Galaxy M101 imaged with a 4 in refractor, ASI 533MC astronomy camera, and an ASI 174MM guide camera. This galaxy is found in Ursa Major, in the part of the sky in the vicinity of other galaxies such as M51, M81 and M82. This target has a very low surface brightness and requires a lot of exposure times to reveal the spiral arms. Use the stars of the Big Dipper to find M101.

Pinwheel Galaxy M101, 3 hours exposure

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines