NGC 2903 – A Barred Spiral Galaxy (KuriousGeorge)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: NGC 2903 · NGC 2905

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NGC 2903 – A Barred Spiral Galaxy

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NGC 2903 – A Barred Spiral Galaxy

A perfect object to start late each evening (2 AM to 5 AM) after capturing Abell 370.

I was able to use the same camera settings with no overexposure. The ASI6200 (Sony IMX455 CMOS) is amazingly configurable with a huge dynamic range when the gain is set to 0.

"NGC 2903 is an isolated barred spiral galaxy in the constellation of Leo. It was discovered by astronomer William Herschel, who cataloged it on November 16, 1784. He mistook it as a double nebula, as did subsequent observers, and it wasn't until the nineteenth century that the Third Earl of Rosse resolved into a spiral form.

NGC 2903 is located about 30 million light-years away, and is a member of the Virgo Supercluster. The morphological classification of this galaxy is SBbc, indicating a barred spiral with moderate to tightly-wound spiral arms.

72% of the stellar mass is located in the outer disk of the galaxy, and 20% is found in the bar. The bulge adds 5% of the stellar mass, and its star population is generally older.

NGC 2903 exhibits an exceptional rate of star formation activity near its center, also bright in radio, infrared, ultraviolet, and x-ray bands. Just a little smaller than our own Milky Way, NGC 2903 is about 80,000 light-years across.

The irregular dwarf galaxy KKH 51 appears to be a companion, as they have an angular separation of 25′ and nearly the same radial velocity."

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Description: Added 1-pixel PS dust removal to smooth some hot pixels.

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ASI 6200 MM Pro

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Status	Advanced success
Started	...
PixInsight job	MENH5QOYKQQQSDFX0W870C1N5VHB4530
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	09h32m19s.816
RA (top/left)	09h33m08s.235
RA (top/right)	09h31m32s.456
RA (bottom/right)	09h31m31s.480
RA (bottom/left)	09h33m07s.700

Dec (center)	+21°30′32″.72
Dec (top/left)	+21°40′06″.40
Dec (top/right)	+21°40′23″.55
Dec (bottom/right)	+21°20′58″.24
Dec (bottom/left)	+21°20′41″.23

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NGC 2903 – A Barred Spiral Galaxy

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