Supernova in NGC7814 (Torben van Hees)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: IC 5381 · NGC 7814

Powered byPixInsight

Supernova in NGC7814

Link: http://astro.van-hees.name

Powered byPixInsight

Supernova in NGC7814

Link: http://astro.van-hees.name

NGC7814 is the "small sombrero" galaxy at a distance of about 40 million light years. Currently it is hosting supernova 2021rhu: The bright spot just "below" the galaxy center. While its apparent magnitude mid-July was 12, in mid-August it has declined to mag 14. Still, this means it is currently still about as luminous as 125 million suns. It is a type Ia supernova, thought to occur in binary systems with one or two white dawrds, when a white dwarf acretes enough matter to reignite fusion. As their spectral content is closely related to their absolute brightness, they are very useful to judge distances to galaxies. I have found no such calculation yet for 2021rhu, though.

Due to mount connection problems and abysmal weather I only got 10 minutes of L frames and one of 5 min each of R, G, B. Considering the short integration time at f/8 I really like the image and I am very happy to have captured my first supernova.

Original
Final
B

B

Description: Color

Uploaded: ...

AstroBin Platform open discussions community forum
Imaged with Voyager
Cloudy Nights
Astrophotography Germany
Suburban Astrophotography

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	4916685
PixInsight job	D0KPAQC5MTWUQTPDCN25O3PDTIZITW40
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h03m15s.291
RA (top/left)	00h02m28s.174
RA (top/right)	00h02m12s.270
RA (bottom/right)	00h04m02s.218
RA (bottom/left)	00h04m18s.525

Dec (center)	+16°08′46″.67
Dec (top/left)	+16°29′59″.38
Dec (top/right)	+15°50′07″.65
Dec (bottom/right)	+15°47′33″.40
Dec (bottom/left)	+16°27′24″.58

Image Index:

Contribution Index (beta):

Supernova in NGC7814

Supernova in NGC7814

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

In these collections

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Supernova in NGC7814

Supernova in NGC7814

Equipment

Acquisition details

Description

Comments

Revisions

B

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?

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