NGC7479 Propeller Galaxy (Mark Mabry)

NGC7479 Propeller Galaxy

The Propeller Galaxy (NGC 7479) is a barred spiral galaxy located about 120 million light-years away from Earth in the northern constellation of Pegasus (the Winged Horse). NGC 7479 is also classified as a Seyfert galaxy,

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 anti-clockwise direction. However, at radio wavelengths, it spins the opposite 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 can be reignited by galactic collisions, and indeed NGC 7479 is undergoing starburst activity, with many bright, young stars visible in the spiral arms and disk.

Personally, barred spiral galaxies are my favorite. Saw this one visually, and knew that I needed to image it. So glad I did. Love the strong 'bar' and the long whispy arms.

Image was captured with 0.7x focal reducer, effective FL of 1315mm. Then it was cropped after processing. I am already planning to image it again next year at f/10, FL 2032mm.

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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