NGC 5201 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 5201

NGC 5201

This small obscure object is a spiral galaxy located 0.4 billion light years away in the constellation of Ursa Major at a declination of +53 degrees. It spans 2 arc-minutes in our apparent view. This corresponds to a huge diameter of 220,000 light years.

This is one of the most unusual galaxies I have imaged. First, its diameter is amazingly large, especially for a spiral galaxy. But even more interesting is the nature of the 2 spiral arms. It looks to me like they spiral in opposite directions. Each arm starts on the opposite sides of the bright oval inner region. The arm at the top right definitely spirals counterclockwise outward about 270 degrees. The opposite arm, starting at the lower left side of the inner region, is more puzzling and a challenge to follow, although it seems like to spirals out in a clockwise direction, also for 270 degrees.

Two smaller galaxies are also seen nearby. A blue one is seen just to the lower left of the core, through the disk of NGC 5201. No distance data is available for this one. If it is the same distance away as NGC 5201, it is about 25,000 light years in diameter.

The other galaxy, which data shows is the same distance away as NGC 5201, is seen to the right. It is 50,000 light years in diameter.

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Status	Advanced success
Started	...
Astrometry.net job	5533524
PixInsight job	AUCHGCGNN2KMO0EJ4GD3FOIVNUU27XCT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h29m16s.469
RA (top/left)	13h30m04s.534
RA (top/right)	13h28m25s.110
RA (bottom/right)	13h28m28s.591
RA (bottom/left)	13h30m07s.735

Dec (center)	+53°04′55″.21
Dec (top/left)	+53°10′13″.20
Dec (top/right)	+53°09′27″.70
Dec (bottom/right)	+52°59′35″.50
Dec (bottom/left)	+53°00′20″.87

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