UGC484 (lowenthalm)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: HD4489 · PGC 2005633 · PGC 2743 · PGC 2761 · TYC2280-14-1 · TYC2280-150-1 · TYC2280-62-1

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UGC484

Acquisition type: Lucky imaging

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UGC484

Acquisition type: Lucky imaging

This is an interesting barred spiral galaxy in the UGC catalog with small bonus barred spiral right next to it that caught my eye. I decided to try taking a deep image of it, since the outer regions of the galaxy are pretty faint. They are in fact within about 6 million light years of each other, so are the dominant galaxies in a small galaxy group.

Some vital statistics:
UGC484
Galaxy type: (R')SB(s)b [Barred spiral with a ring]
Size: 0.8 x 2.4 arcmin (156 kly across)
Brightness: 13.86 mag(B)
Distance: 225 mly (z=0.01622)

MCG +05-03-003
Galaxy type: SB [barred spiral]
Size: 27 x 52 arcsec (58 kly across)
Brightness: 15.01 mag(B)
Distance: 231 mly (z=0.01666)

That very orange bright star at the left is RW Andromedae (HD 4489). Its a long period Mira type variable (like the star in Cetus). It hugely varies from a visual magnitude 7.9 to 15.7 and then back again over a regular period of 430 days. Here it saturated in my camera, so it must be brighter than 10th magnitude. If it had been at minima when I took this image (about 200 days after I captured this image), RW Adromedae would have been about the brightness of the dim blue-white star directly to its right!

Each of the 67 six minute subs was a live stack (in SharpCap) of 72 x 5 second exposures.

All
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Galaxies - small and unusual
Galaxy - Clusters

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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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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	6883734
PixInsight job	ELS5PM4PEIL921DSQAKSKTLI6KPITUCS
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h46m55s.834
RA (top/left)	00h47m35s.900
RA (top/right)	00h46m16s.820
RA (bottom/right)	00h46m16s.727
RA (bottom/left)	00h47m34s.762

Dec (center)	+32°40′31″.46
Dec (top/left)	+32°46′00″.90
Dec (top/right)	+32°46′03″.87
Dec (bottom/right)	+32°35′01″.26
Dec (bottom/left)	+32°34′58″.53

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UGC484

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UGC484

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