The Propeller galaxy (James R Potts)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: HD217889 · NGC 7479 · PGC 1398460 · PGC 1405069 · PGC 1406121 · PGC 1407499 · PGC 1415710

The Propeller galaxy

This beautiful barred spiral galaxy in Pegasus and is often called The Propeller Galaxy and is around 105 million light years away. It was discovered by William Herschel in 1784. This galaxy also appears to be in a area of interstellar dust. I could not pull it out as well as I wanted, but I reviewed other images on astrobin that had a similar pattern of dust.

According to the NASA website, this galaxy emits a jet of radiation in radio wavelengths that bends in the opposite direction to the stars and dust in the arms of the galaxy. Astronomers think that the radio jet was put into its bizarre backward spin after the Propeller galaxy merged with another galaxy. Hidden within the galaxy’s core lurks a supermassive black hole that feeds on large quantities of gas. The galaxy has also been the home to two recent supernovae, one witnessed in 1990 and the other in 2009. Supernova explosions blast stellar material back into the cosmos to be used in subsequent generations of stars. The Propeller galaxy is making rapid use of this recycled material as it undergoes starburst activity, with many bright, young stars peeking out of the spiral arms and disk.

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Status	Advanced success
Started	...
Astrometry.net job	8651863
PixInsight job	0PSTO3K4D51U0OT60ML3C6JKI6BRLK1C
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h04m51s.807
RA (top/left)	23h04m19s.859
RA (top/right)	23h02m21s.570
RA (bottom/right)	23h05m23s.649
RA (bottom/left)	23h07m22s.701

Dec (center)	+12°18′05″.79
Dec (top/left)	+13°00′17″.95
Dec (top/right)	+11°56′08″.37
Dec (bottom/right)	+11°36′00″.54
Dec (bottom/left)	+12°39′56″.16

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