The Propeller Galaxy (NGC 7479) (KuriousGeorge)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: NGC 7479

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The Propeller Galaxy (NGC 7479)

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The Propeller Galaxy (NGC 7479)

3rd of 3 September objects.

The Propeller Galaxy (NGC 7479) is a barred spiral galaxy located about 105 million light-years away from Earth in the northern constellation of Pegasus, while it is racing away from us at some 2381 kilometers per second.

It has a very asymmetric spiral structure with a bright, long bar. Its tightly wound arms create an inverted ‘S’, as they spin in an anticlockwise direction. However, at radio wavelengths, it spins the other way, with a jet of radiation that bends in the opposite direction to the stars and dust in the arms of the galaxy.

This radio jet in the Propeller Galaxy was probably put into its bizarre backwards spin by a recent minor merger with another galaxy.

Star formation is reignited by galactic collisions, and indeed NGC 7479 is undergoing starburst activity, with many bright, young stars visible in the spiral arms and disk. The brightest stars in this image, however, are foreground stars.

NGC 7479 is also classified as a Seyfert galaxy, a galaxy with an extremely bright, active galactic nucleus (AGN), that contains a supermassive black hole.

Two supernovae occurred in the Propeller Galaxy: SN 1990U that reached mag 16, was discovered on July 27, 1990, and SN 2009jf with a maximum brightness of mag 15, was discovered on September 27,2009 by the Lick Observatory Supernova Search.

Unique or Unusal Deep Sky Targets

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	3370753
PixInsight job	TDU05X7PYG6G037RLL9VZ5FN8KFAF2L5
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	23h04m57s.911
RA (top/left)	23h04m23s.412
RA (top/right)	23h04m22s.441
RA (bottom/right)	23h05m32s.460
RA (bottom/left)	23h05m33s.467

Dec (center)	+12°18′54″.75
Dec (top/left)	+12°28′37″.60
Dec (top/right)	+12°09′24″.98
Dec (bottom/right)	+12°09′11″.49
Dec (bottom/left)	+12°28′24″.48

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The Propeller Galaxy (NGC 7479)

The Propeller Galaxy (NGC 7479)

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Image Index:

Contribution Index (beta):

The Propeller Galaxy (NGC 7479)

The Propeller Galaxy (NGC 7479)

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