Integrated Flux Nebula around M81 (Aleix Roig)

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

Powered byPixInsight

Integrated Flux Nebula around M81

Link: https://astrocat.info/integrated-flux-nebula-around-m81-and-m82/

Link to TIFF/FITS: https://astrocat.info/integrated-flux-nebula-around-m81-and-m82/

Powered byPixInsight

Integrated Flux Nebula around M81

Link: https://astrocat.info/integrated-flux-nebula-around-m81-and-m82/

Link to TIFF/FITS: https://astrocat.info/integrated-flux-nebula-around-m81-and-m82/

Detail image of the original M81 and M82 wide field.

The Bode's Galaxy (M81) and the Cigar Galaxy (M82) lay some 12 million light-years away from Earth in the constellation of the Great Bear (Ursa Major). M81, a grand design spiral galaxy, is gravitationally interacting with M82, a large galaxy with a filamentary red-glowing gas, five times more luminous than the Milky Way, that presents a star forming rate 10 times greater than the one in our own galaxy.

Both galaxies are seen through a vast and complex screen of diffuse gas called Integrated Flux Nebula (IFN). This faint glow is caused by the combined light of the stars of the Milky Way reflected and re-emitted by interstellar gas and dust.

This image has been possible thanks to the dark skies of my home village, Prades, a perfect location for stargazing. Several weeks were needed to collect all the data used to compose this image. While most of the data comes from the Luminance filter, the use of the H alpha filter allowed me to capture the glowing hydrogen filaments of M82 and the star forming regions in M81. The average darkness from my Bortle 4 location was these days around mag/arcsec2 .

Image details:

L: 305x120"

RGB: 30x120" each channel

Hα: 24x300"

All images at 120Gain -15ºC bin2

Calibrated with 50 flats, 50 darks,50 dark flats

Total exposure: 15h10’

Average darkness: 21.10 mag/arcsec2

Image resolution: 2.12”/pixel

Equipment:

FSQ85ED telescope

Mesu200 mount

ASI294MM Pro camera with ZWO EFW 8 pos

Guiding with ASI174MC and ZWO OAG

Baader filters

Software:SGP, PHD2, APP, PIX, LR, PS.

Aleix Roig -Prades, Tarragona (Catalonia, Spain), May 2021.

Cloudy Nights

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	467AD6SJOWMD2XN2JMRIEU3C6CXL1HHX
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	09h55m30s.86
RA (top/left)	09h52m22s.21
RA (top/right)	09h52m22s.45
RA (bottom/right)	09h58m32s.94
RA (bottom/left)	09h58m45s.56

Dec (center)	+69°03′40″.4
Dec (top/left)	+69°26′23″.6
Dec (top/right)	+68°41′09″.0
Dec (bottom/right)	+68°40′44″.10
Dec (bottom/left)	+69°25′58″.5

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Integrated Flux Nebula around M81

Integrated Flux Nebula around M81

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Integrated Flux Nebula around M81

Integrated Flux Nebula around M81

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

Error

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information