NGC 7771 Group (NGC 7769, NGC 7770 and NGC 7771) (Sergey Trudolyubov)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: NGC 7769 · NGC 7770 · NGC 7771

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NGC 7771 Group (NGC 7769, NGC 7770 and NGC 7771)

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NGC 7771 Group (NGC 7769, NGC 7770 and NGC 7771)

Interacting galaxies NGC 7769 and NGC 7771 and a small satellite of NGC 7771, NGC 7770. The NGC 7771/7770 pair shares an extended halo and numerous tidal tails from previous interactions. The galaxies appear to be "floating" in the sea of foreground Galactic cirrus (IFN), the light radiated by interstellar dust in our Milky Way.

The data for this image was collected over several nights in September 2022 and September-October 2023 using the 250mm f/4 Lacerta PhotoNewton and ZWO ASI294MM Pro camera:

L: 44x300s (Gain 0, Bin 1x1), 64x90s (Gain 108, Bin 1x1)
R: 56x180s (Gain 108, Bin 1x1)
G: 40x180s (Gain 108, Bin 1x1)
B: 40x180s (Gain 108, Bin 1x1)
Total exposure: 12 hours

Original
B
D
Final
F

B

Description: Narrower, rotated view, darker background

Uploaded: ...

D

Description: Inverted wide-field image showing tidal tails and IFN

Uploaded: ...

F

Description: Image processing including deconvolution, star reduction with RC BXT and noise reduction with NXT tools. Compare to a more traditional processing (Version B)

Uploaded: ...

ZWO ASI294MM Pro Images
Fast Newtonians
CMOS Imagers

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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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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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Status	Advanced success
Started	...
Astrometry.net job	8962768
PixInsight job	LDQBB52XJ4X2RA5AAUNOEMTLQ9XW6J49
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h51m12s.679
RA (top/left)	23h52m07s.521
RA (top/right)	23h50m19s.800
RA (bottom/right)	23h50m17s.987
RA (bottom/left)	23h52m06s.235

Dec (center)	+20°07′58″.10
Dec (top/left)	+20°17′19″.50
Dec (top/right)	+20°17′40″.59
Dec (bottom/right)	+19°58′36″.90
Dec (bottom/left)	+19°58′14″.28

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Contribution Index (beta):

NGC 7771 Group (NGC 7769, NGC 7770 and NGC 7771)

NGC 7771 Group (NGC 7769, NGC 7770 and NGC 7771)

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Image Index:

Contribution Index (beta):

NGC 7771 Group (NGC 7769, NGC 7770 and NGC 7771)

NGC 7771 Group (NGC 7769, NGC 7770 and NGC 7771)

Equipment

Acquisition details

Description

Comments

Revisions

B

D

F

Sky plot

Histogram

In these public groups

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