Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5461  ·  NGC 5471  ·  NGC 5477
Pinwheel Galaxy (M101), Hassan Abdollahabadi
Pinwheel Galaxy (M101)
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Pinwheel Galaxy (M101)

Pinwheel Galaxy (M101), Hassan Abdollahabadi
Pinwheel Galaxy (M101)
Powered byPixInsight

Pinwheel Galaxy (M101)

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Description

Why do many galaxies appear as spirals?

A striking example is M101

Big, beautiful spiral galaxy M101 is one of the last entries in Charles Messier's famous catalog

About 170,000 light-years across, this galaxy is enormous, almost twice the size of our own Milky Way galaxy.

The foreground stars are in the Milky Way galaxy

Its core is dominated by light from cool yellowish stars.

Also known as the Pinwheel Galaxy, M101 lies within the boundaries of the northern constellation Ursa Major, about 23 million light-years away.

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Pinwheel Galaxy (M101), Hassan Abdollahabadi