Rosetta Nebula (NGC 2239 & NGC 2244) and echos of a supernova past (LBN 941 & LBN 943) (DoubleStarPhotography)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 12 Mon · LBN 941 · LBN 943 · LBN 948 · LBN 949 · NGC 2237 · NGC 2238 · NGC 2239 · NGC 2244 · NGC 2246 · NGC 2252 · Rosette A · Rosette B · Rosette Nebula · Sh2-275 · The star 12 Mon

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Rosetta Nebula (NGC 2239 & NGC 2244) and echos of a supernova past (LBN 941 & LBN 943)

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Rosetta Nebula (NGC 2239 & NGC 2244) and echos of a supernova past (LBN 941 & LBN 943)

The Rosette Nebula is found in the constellation Monoceros (The Unicorn). The Rosette Nebula is a large H-II star forming region , and lies in the direction of the galactic equator, a region rich in open star clusters, glowing nebulae and dark clouds. The Rosette Nebula is almost circular with an apparent diameter of 80 x 60 arcminutes (about 140 light years). In the center of the H-II region lies the open star cluster NGC 2244, which is about 5200 light years away from the solar system.

The nebula itself has a number of entries in the NGC catalogue, according to the first observations of different astronomers. They are NGC 2237 (observation of Lewis A. Swift from 1865), NGC 2238 (observation of Albert Marth from 28 February 1864), NGC 2239 (observation of John Herschel from March 1830) and NGC 2246 (observation of Lewis A. Swift from 27 February 1886). The open star cluster in the center of the H-II region has a double entry with NGC 2239 (observation of John Flamsteed on February 17, 1690) and NGC 2244 (observation of John Flamsteed on February 17, 1690).

In the upper right portion of the image is another H II region, Sh2-280, whch is my image are denoted with LBN 941 and LBN 943 labels, and are the brightest parts of an old supernova remnant.

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Status	Advanced success
Started	...
Astrometry.net job	7075403
PixInsight job	F93F0RWW6J0D63BJFD8BYMZLY7O4H2JA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h31m56s.46
RA (top/left)	06h37m11s.90
RA (top/right)	06h32m01s.25
RA (bottom/right)	06h26m40s.99
RA (bottom/left)	06h31m51s.70

Dec (center)	+04°56′02″.2
Dec (top/left)	+04°54′44″.2
Dec (top/right)	+06°14′35″.7
Dec (bottom/right)	+04°57′09″.9
Dec (bottom/left)	+03°37′27″.3

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Rosetta Nebula (NGC 2239 & NGC 2244) and echos of a supernova past (LBN 941 & LBN 943)

Rosetta Nebula (NGC 2239 & NGC 2244) and echos of a supernova past (LBN 941 & LBN 943)

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Rosetta Nebula (NGC 2239 & NGC 2244) and echos of a supernova past (LBN 941 & LBN 943)

Rosetta Nebula (NGC 2239 & NGC 2244) and echos of a supernova past (LBN 941 & LBN 943)

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