M81 and M82 (Torben van Hees)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · Cigar Galaxy · M 81 · M 82 · NGC 3031 · NGC 3034

Powered byPixInsight

M81 and M82

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

Powered byPixInsight

M81 and M82

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

M81 and M82 are well-known and often-fotographed objects. Still, they are fascinating. While M81 seems undisturbed, M82 is an edge-on starburst galaxy. I find it one of the most fascinating objects in the sky, because it is close enough to be able to discern the H-alpha nebulae streaking out, formed by the star bursts.

My image went quite deep, so I tried to work out some IFN. The ribbon-like structure which seems to flow around the right side of M81 is called Arp's Loop. Arp believed it to be a flux of stars around M81. In reality, it is a stream of gas in our own galaxy which reflects the shine of the Milky Way.

Final
Original
C

C

Description: Some IFN

Uploaded: ...

Cloudy Nights
AstroBin Platform open discussions community forum

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	Advanced success
Started	...
PixInsight job	ASBB9EBY0TTN8FRPRZQT0JXAGTMOFRZM
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	09h55m04s.395
RA (top/left)	09h56m19s.504
RA (top/right)	10h01m51s.953
RA (bottom/right)	09h53m44s.440
RA (bottom/left)	09h48m32s.531

Dec (center)	+69°18′22″.90
Dec (top/left)	+68°35′23″.55
Dec (top/right)	+69°43′17″.60
Dec (bottom/right)	+70°01′18″.48
Dec (bottom/left)	+68°52′29″.60

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

M81 and M82

M81 and M82

Equipment

Acquisition details

Description

Comments

Revisions

C

Sky plot

Histogram

In these public groups

In these collections

		...
You have no new notifications.

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

M81 and M82

M81 and M82

Equipment

Acquisition details

Description

Comments

Revisions

C

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

Error

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information