Messier 104: Elliptical or Spiral Galaxy? (Alex Woronow)

Celestial hemisphere: Southern · Constellation: Virgo (Vir) · Contains: M 104 · NGC 4594 · PGC 3097710 · PGC 962963 · PGC 964710 · PGC 964919 · Sombrero Galaxy

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Messier 104: Elliptical or Spiral Galaxy?

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Messier 104: Elliptical or Spiral Galaxy?

Messier 104: Elliptical or Spiral Galaxy?

OTA: CDK 24" f/6.5
Camera: Moravian C3-61000 Pro, 2x2 binned at capture
Observatory: Heaven's Mirror, Chile

Exposures:
R: 14 x 600 sec
G: 18 x 600
B: 18 x 600
Total Exposure time: 8.5 hours
Image Width: 12.6 arcminutes (the zoomed version)

Processing: PixInsight, Topaz Studio2, NXT, BXT, SN2, AC_Restar, SWT

Embedded in a swarm of stars and gas, M 104 hides much of its detail. Some of the small background galaxies show more structure than M 104. Wikipedia says that the massive dust ring suggests an elliptical galaxy. I am unsure what this means, as most elliptical galaxies lack this feature. Also, the extended bloat is often called a "central bulge." That term is not commonly associated with elliptical galaxies either. But, "what's in a name?" For that matter, what's in a galactic classification?

Alex Woronow, FaintLightPhotography

Final
Original
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B

Description: Image width ~30 arcminutes

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	7404685
PixInsight job	WJCXLB8DHOSO1XH3FHTVIN4FS5ILMMFU
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h39m58s.538
RA (top/left)	12h39m25s.292
RA (top/right)	12h40m31s.811
RA (bottom/right)	12h40m31s.752
RA (bottom/left)	12h39m25s.300

Dec (center)	-11°37′19″.82
Dec (top/left)	-11°45′28″.90
Dec (top/right)	-11°45′27″.89
Dec (bottom/right)	-11°29′11″.00
Dec (bottom/left)	-11°29′11″.54

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Messier 104: Elliptical or Spiral Galaxy?

Messier 104: Elliptical or Spiral Galaxy?

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Messier 104: Elliptical or Spiral Galaxy?

Messier 104: Elliptical or Spiral Galaxy?

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