NGC 4631 The Whale (Herring) RGB (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: NGC 4627 · NGC 4631 · Whale Galaxy

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NGC 4631 The Whale (Herring) RGB

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NGC 4631 The Whale (Herring) RGB

Processing just with RGB on some very clear nights so I left the L aside as it looked over exposed. I was able to use HDRMT on the RGB to bring out the structure (Level 4). 3D-LUT separates the Red and Blue some.

NGC 4631 (also known as the Whale Galaxy or Caldwell 32) is a barred spiral galaxy in the constellation Canes Venatici. This galaxy's slightly distorted wedge shape gives it the appearance of a herring or a whale, hence its nickname.[3] Because this nearby galaxy is seen edge-on from Earth, professional astronomers observe this galaxy to better understand the gas and stars located outside the plane of the galaxy.

NGC 4631 contains a central starburst, which is a region of intense star formation. The strong star formation is evident in the emission from ionized hydrogen[4] and interstellar dust heated by the stars formed in the starburst. The most massive stars that form in star formation regions only burn hydrogen gas through fusion for a short period of time, after which they explode as supernovae. So many supernovae have exploded in the center of NGC 4631 that they are blowing gas out of the plane of the galaxy. This superwind can be seen in X-rays and in spectral line emission.[4] The gas from this superwind has produced a giant, diffuse corona of hot, X-ray emitting gas around the whole galaxy.

- from Wikipedia

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	4473347
PixInsight job	5ED99RICAI8KOJ7KQKZ5BA5OODC3NTGC
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h42m04s.24
RA (top/left)	12h44m03s.47
RA (top/right)	12h40m00s.20
RA (bottom/right)	12h40m05s.83
RA (bottom/left)	12h44m07s.65

Dec (center)	+32°32′07″.10
Dec (top/left)	+32°51′04″.1
Dec (top/right)	+32°49′36″.7
Dec (bottom/right)	+32°13′04″.7
Dec (bottom/left)	+32°14′31″.4

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NGC 4631 The Whale (Herring) RGB

NGC 4631 The Whale (Herring) RGB

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NGC 4631 The Whale (Herring) RGB

NGC 4631 The Whale (Herring) RGB

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