NGC 151 (Gary Imm)

Celestial hemisphere: Southern · Constellation: Cetus (Cet) · Contains: NGC 151

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NGC 151

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NGC 151

This rarely imaged object is also known as NGC 153, one of many duplicate entries in the NGC catalog. This object is a barred spiral galaxy located 170 million light years away in the constellation of Cetus at a declination of -10 degrees. The galaxy spans 2.5 arc-minutes in our apparent view, which corresponds to a diameter of 125,000 light years.

The galaxy bar is clearly visible. The yellow core region contrasts nicely with the blue of the galaxy arms. I like the two tiny bright arc-segment regions immediately left and right of the core, barely visible in the full resolution view.

The most distinguishing feature of this galaxy is the wide gap in the arm on the right side of the galaxy disk. What is causing this gap? It is likely due to gravitational interaction with the small galaxy seen towards the end of the galaxy arm to the right. Not AT the end of the arm - that would be foreground 13th magnitude star GSC 5269 612. But just above and left of this star is galaxy 2MASXJ00340814. Scientists have confirmed that this small galaxy, at 20,000 light years in diameter, is a companion galaxy to NGC 151.

ZWO ASI183/QHY183
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Cloudy Nights
Takahashi Refractors

Ansae Galaxy Bar
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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	Advanced success
Started	...
Astrometry.net job	3109150
PixInsight job	59GIWHFTCJMVXOVLMX7O83L3X7N6KTVR
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h34m02s.707
RA (top/left)	00h33m11s.658
RA (top/right)	00h34m57s.850
RA (bottom/right)	00h34m53s.707
RA (bottom/left)	00h33m07s.609

Dec (center)	-09°42′14″.96
Dec (top/left)	-09°51′18″.69
Dec (top/right)	-09°49′42″.63
Dec (bottom/right)	-09°33′10″.72
Dec (bottom/left)	-09°34′46″.84

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NGC 151

NGC 151

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NGC 151

NGC 151

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