M101, The Pinwheel Galaxy with SN 2011fe (Ruben Barbosa)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5455 · NGC 5457

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M101, The Pinwheel Galaxy with SN 2011fe

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M101, The Pinwheel Galaxy with SN 2011fe

* Image acquisition (Halpha) by[url= https://www.astrobin.com/users/iosifbodnariu/] Iosif Bodnariu[/url].

* Image acquisition (RGB) by Jim Misti / Steven Mazlin.

* Image acquisition (Lum) by Liverpool Telescope.

* Processing: Ruben Barbosa.

* Distance: 27 Mly.

The Pinwheel Galaxy (NGC 5457 or M101) is a prominent spiral located about 27 million light-years away, in the direction of the constellation Ursa Major; has almost 200.000 light-years in diameter, making it one of the largest known and brightest in its group of galaxies, the M101 group.

The M101 presents an asymmetric geometry due to the tidal forces that it is subjected by its companion galaxies, which end up compressing the interstellar hydrogen, triggering strong star formation activity along the spiral arms. In the image it is possible to observe numerous HII regions along the spiral arms.

The red arrow points to SN 2011fe, initially designated PTF 11kly, a Type Ia supernova.

See also:

2. Galaxies
Liverpool Telescope Gallery

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Status	Basic success
Started	...
Astrometry.net job	3595330
PixInsight job	BQZVQVYOPLKZET7926UB8JJAGM971WHY
PixInsight queue size	n/a
PixInsight stage	n/a

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M101, The Pinwheel Galaxy with SN 2011fe

M101, The Pinwheel Galaxy with SN 2011fe

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M101, The Pinwheel Galaxy with SN 2011fe

M101, The Pinwheel Galaxy with SN 2011fe

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