NGC 4651 - The Umbrella Galaxy (Kurt Zeppetello)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: NGC 4651

Powered byPixInsight

NGC 4651 - The Umbrella Galaxy

Link: http://astroquest1.blogspot.com/

Powered byPixInsight

NGC 4651 - The Umbrella Galaxy

Link: http://astroquest1.blogspot.com/

In my quest to search for objects not often imaged I came across a giant umbrella in space (NGC 4651). This is a relatively small object which may explain not many images of it exist on Astrobin. It is a spiral galaxy 62 million light-years away located in constellation Coma Berenices. The galaxy is about the same size as our own Milky Way with one addition - a 100 thousand light-year long stream of star-trails gravitationally stripped from a smaller satellite galaxy that resembles a giant umbrella. Researchers using the Subaru and Keck telescopes have identified the remnant core of the satellite galaxy. On my image the remnant core of the smaller galaxy is the blue dot located just before the 'T intersection' where the umbrella shaft meets the top.

Aside from being very busy lately, the weather has been horrible in April and most of May. So I shot this between the clouds and trees over five nights. I do have a new addition - the Pegasus Pocket Powerbox (PPB) which works really well - I constructed a holder for it, my autoguider, finder scope, and USB Hub out of a aluminum plate that I show at a later date - I just wanted to image something.

Processing was tough on this because I wanted to make sure I got the umbrella. Not surprisingly, it showed up best with the luminosity exposures (much better). For this reason I would not recommend imaging this object with a DSLR or OSC camera. Good thing I did not choose this to make a tutorial. I went back and forth with PI and PS in order to get something I was satisfied with. Anyway, it is my first image in over a month.

N.I.N.A. Users
Imaged with APT

All - Most Recent First
Favorites-DSO
Galaxies

Please note: The following tables are updated every 24 hours.

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	2729745
PixInsight job	4J3EU5W0FSP3YX4KB5LTE27FLEX6H36I
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h43m41s.87
RA (top/left)	12h45m45s.50
RA (top/right)	12h42m02s.00
RA (bottom/right)	12h41m38s.55
RA (bottom/left)	12h45m21s.29

Dec (center)	+16°23′27″.4
Dec (top/left)	+16°38′16″.6
Dec (top/right)	+16°46′22″.5
Dec (bottom/right)	+16°08′33″.2
Dec (bottom/left)	+16°00′28″.1

Image Index:

Contribution Index (beta):

NGC 4651 - The Umbrella Galaxy

NGC 4651 - The Umbrella Galaxy

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

Image Index:

Contribution Index (beta):

NGC 4651 - The Umbrella Galaxy

NGC 4651 - The Umbrella Galaxy

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information