NGC 4725 & LoTr 5 #1 (Molly Wakeling)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: HD111514 · HD111605 · HD111813 · HD111842 · HD111878 · HD112032 · HD112299 · HD112313 · NGC 4712 · NGC 4725 · NGC 4747 · PGC 1724065 · PGC 1724438 · PGC 1725122 · PGC 1726165 · PGC 1726326 · PGC 1727154 · PGC 1727985 · PGC 1728340 · PGC 1728385 · PGC 1728765 · PGC 1729046 · PGC 1730388 · PGC 1731016 · PGC 1731441 · PGC 1731918 · PGC 1732526 · PGC 1732587 · PGC 1733152 · PGC 1733920 · And 59 more.

Powered byPixInsight

NGC 4725 & LoTr 5 #1

Powered byPixInsight

NGC 4725 & LoTr 5 #1

Another old dataset that I'm reprocessing now that I've gotten decent at using GeneralizedHyperbolicStretch! This dataset was a mess the last time I tried it, but came out reasonably both with GHS and some new techniques I've learned with color masking, as well as StarNet2 being super awesome now. (Operating on starless images is great!) This image is a combination of wideband light (a light pollution filter) for the galaxy and stars, and narrowband light (a duo-narrowband filter) for the planetary nebula.

NGC 4725, the galaxy on the left, is a barred spiral galaxy that lies about 40 million lightyears behind the constellation Coma Berenices. It's interacting strongly with NGC 4747, the stretched-out-looking one down and to the right of NGC 4725, which is about 379,000 lightyears away from NGC 4725. It's hard to see here, but that spiral actually forms a complete ring around the galaxy.

On the lower right is a faint planetary nebula called LoTr 5 (LoTr being short for Longmore-Tritton). It was discovered in 1980 by these two by looking at photographic plates from a 1.24m telescope in Australia. It's one of the largest planetary nebula known at 1.8 lightyears across. It's location is pretty unusual -- in this image, we are looking almost due galactic-north, so very high up out of the plane of the galaxy. Many other planetary nebula commonly observed (Dumbbell, Ring, etc) have red-glowing shock fronts as the fast-moving gas from the dying star interacts with the interstellar medium, but the the interstellar medium is very thin at that galactic latitude, which is why we don't see a shock front, and instead see blue-glowing oxygen gas. LoTr 5 lies about 1,650 lightyears away.

Women Astrophotographers
Broadband under Bortle 7/8/9

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	6035788
PixInsight job	8KG4R5WLVOM1J7FZX7GJXXSMTS2KWD8G
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h53m13s.40
RA (top/left)	12h48m54s.72
RA (top/right)	12h57m34s.75
RA (bottom/right)	12h57m33s.32
RA (bottom/left)	12h48m49s.32

Dec (center)	+25°39′57″.9
Dec (top/left)	+25°00′07″.10
Dec (top/right)	+25°00′59″.9
Dec (bottom/right)	+26°19′39″.3
Dec (bottom/left)	+26°18′28″.9

Image Index:

Contribution Index (beta):

NGC 4725 & LoTr 5 #1

NGC 4725 & LoTr 5 #1

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Image Index:

Contribution Index (beta):

NGC 4725 & LoTr 5 #1

NGC 4725 & LoTr 5 #1

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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