NGC 3521 - Bubble Galaxy (Doug Summers)

Celestial hemisphere: Southern · Constellation: Leo (Leo) · Contains: NGC 3521

Powered byPixInsight

NGC 3521 - Bubble Galaxy

Powered byPixInsight

NGC 3521 - Bubble Galaxy

Located ~40 million light years distant in the direction of Leo, NGC 3521 has several interesting characteristics. It's an obvious flocculent spiral in it's core, but it also has wider spiral structure further out in the arms. The galaxy must have undergone a serious encounter with another galaxy in the not so distant past, as there are huge clouds of stars surrounding the main spiral structure. Could the remains of the interacting galaxy be those outer arms? The galaxy has the nickname "bubble galaxy" due to the extreme edges of the stellar scatter. In this image, that outermost shell of stars is just barely visible. The galaxy is cropped to highlight the internal structures. There are also some nice smaller fuzzies in the field with their own nice structures.

Original
C
Final
D

C

Description: Reprocessed to see if I couldn't resolve that outer "bubble" a bit better.

Uploaded: ...

D

Description: A touch of secondary noise reduction, and a slight curves adjustment to the core.

Uploaded: ...

Celestron RASA
The OSC Club (One Shot Camera)

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
Artificial satellite

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	Basic success
Started	...
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

NGC 3521 - Bubble Galaxy

NGC 3521 - Bubble Galaxy

Equipment

Acquisition details

Description

Comments

Revisions

C

D

Sky plot

Histogram

In these public groups

In these collections

		...
You have no new notifications.

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

NGC 3521 - Bubble Galaxy

NGC 3521 - Bubble Galaxy

Equipment

Acquisition details

Description

Comments

Revisions

C

D

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?

Delete this revision?

Delete this revision?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Error

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information