NGC 1187 (Gary Imm)

Celestial hemisphere: Southern · Constellation: Eridanus (Eri) · Contains: NGC 1187

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NGC 1187

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NGC 1187

This object is an obscure spiral barred galaxy located 60 million light years away in the constellation of Eridanus at a declination of -23 degrees. The galaxy spans 6 arc-minutes in our apparent view, which corresponds to a diameter of 100,000 light years.

The arm structure of this galaxy is fascinating to me. There are 2 grand spiral arms which both extend about 270 degrees around from their attachment to the main bar, but each arm is quite disturbed and not continuous. This disturbance may be due to the small companion galaxy (PGC 11469) which is below and left of NGC 1187 and at the same distance away from us.

My favorite part of this image is the subtle colors of the main galaxy, ranging from blue in the outer reaches and in the bright star clusters, to yellow in the core areas, to hints of red in some disk star formation regions. In some areas throughout the disk, these colors seem to be wonderfully mixed.

ZWO ASI183/QHY183
The refractors!
Cloudy Nights
Takahashi Refractors

Barred Galaxies
Three Armed Galaxies

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	Advanced success
Started	...
Astrometry.net job	3163628
PixInsight job	F42LBF29HXRGZRDJJZC9NMB3FI3GXFXB
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	03h02m37s.304
RA (top/left)	03h01m45s.429
RA (top/right)	03h02m54s.273
RA (bottom/right)	03h03m29s.169
RA (bottom/left)	03h02m20s.385

Dec (center)	-22°52′03″.87
Dec (top/left)	-22°52′47″.58
Dec (top/right)	-23°03′22″.81
Dec (bottom/right)	-22°51′19″.10
Dec (bottom/left)	-22°40′44″.67

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NGC 1187

NGC 1187

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NGC 1187

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