Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  Pinwheel galaxy
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M 101 Pinwheel Galaxy, David Whelan
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M 101 Pinwheel Galaxy

Getting plate-solving status, please wait...
M 101 Pinwheel Galaxy, David Whelan
Powered byPixInsight

M 101 Pinwheel Galaxy

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Description

This image of M101 was taken in my backyard under Bortle 4 sky on a moonless night. It consists of 8 hours of data over two nights with 180 second exposures using an ASI 1600mm colour camera and 10 inch F4.7 Newt mounted on a CEM 70.

The Pinwheel Galaxy is a face-on spiral galaxy 21 million light-years away from Earth in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781 and was communicated that year to Charles Messier, who verified its position for inclusion in the Messier Catalogue as one of its final entries.

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M 101 Pinwheel Galaxy, David Whelan