Grus Quartet - NGC 7552, 7582, 7590, 7599. And Abel 1111 (Ferrante Enriques)

Celestial hemisphere: Southern · Constellation: Grus (Gru) · Contains: NGC 7552 · NGC 7582 · NGC 7590 · NGC 7599

Image of the day 08/09/2023

Grus Quartet - NGC 7552, 7582, 7590, 7599. And Abel 1111

Image of the day 08/09/2023

Grus Quartet - NGC 7552, 7582, 7590, 7599. And Abel 1111

The Grus-Quartet consists of four large spiral galaxies which are relatively close to each other at about 60/70 million ly from Earth. In the background there are countless distant galaxies hundreds of millions of light years away; while to the right of NGC 7590 and NGC 7599 is situated the galaxy cluster Abell 1111, dominated by two giant elliptical galaxies - PGC 71042 and PGC 71043.
The central galaxy NGC 7582 is a type 2 Seyfert galaxy, such a classification is due to the fact that the galaxy has an extremely bright supermassive central black hole very similar to a quasar. The black hole of NGC7582 is about 10 million times the mass of the sun. (source: Wikipedia and Sky and Telescope)

The image is 6hrs per RGB channel + 13 hrs L. I also collected some Ha data but the H sources where so small that was not worth adding to the image.
Luminance calibrated poorly due to bad flats, so a large scale noise is still visible in the background.

EDIT 9/8/2023: My first Image of the Day on my birthday! Actually was yesterday, a nice present from the IOTD team anyway.

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ZWO ASI2600MM Pro

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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.

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Status	Basic success
Started	...
Astrometry.net job	8138594
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Image of the day 08/09/2023

Grus Quartet - NGC 7552, 7582, 7590, 7599. And Abel 1111

Image of the day 08/09/2023

Grus Quartet - NGC 7552, 7582, 7590, 7599. And Abel 1111

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Image of the day 08/09/2023

Grus Quartet - NGC 7552, 7582, 7590, 7599. And Abel 1111

Image of the day 08/09/2023

Grus Quartet - NGC 7552, 7582, 7590, 7599. And Abel 1111

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