Messier 81 and Messier 82 (Konstantinos Tsekas)

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

Messier 81 and Messier 82, Konstantinos Tsekas

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Messier 81 and Messier 82

Link: https://www.flickr.com/photos/145227632@N04/49609459942/in/datetaken/

Powered byPixInsight

Messier 81 and Messier 82

Link: https://www.flickr.com/photos/145227632@N04/49609459942/in/datetaken/

Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a grand design spiral galaxy about 12 million light-years away, with a diameter of 90,000 light years, about half the size of the Milky Way, in the constellation Ursa Major. Due to its proximity to Earth, large size, and active galactic nucleus (which harbors a 70 million M☉ supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy's large size and relatively high brightness also makes it a popular target for amateur astronomers.

Messier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major. A member of the M81 Group, it is about five times more luminous than the whole Milky Way and has a center one hundred times more luminous than our galaxy's center. The starburst activity is thought to have been triggered by interaction with neighboring galaxy M81. As the closest starburst galaxy to Earth, M82 is the prototypical example of this galaxy type. SN 2014J, a type Ia supernova, was discovered in the galaxy on 21 January 2014. In 2014, in studying M82, scientists discovered the brightest pulsar yet known, designated M82 X-2.

Location: Stinger of Scorpius Observatory, Filiates, Thesprotia - Greece.

Processing: Kostas Tsekas - Aras Teo

Telescope: William optics star 71 f/4.9

Mount: Avalon linear fast reverse

Camera: CCD Atik One 6.0

Filter:Baader LRGB - Astrodon Ha 5 nm

Guide:ZWO ASI290MM Mini (mono) + Skywatcher ed80

Process:CCD stack - Pixinsight - Photoshop CS6

Exposure: Luminance(Super Luminance), RED(Red+Ha), Green, Blue

Luminance 48 exposures x 300sec

Ha 18 x 600sec

Red 24 x 300sec

Green 24 x 300sec

Blue 24 x 300sec

Total: 13 hours total

Original
Final
B

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	Distinct awarded users	Total awarded images
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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
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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
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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.
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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	...
Astrometry.net job	5494084
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Messier 81 and Messier 82

Messier 81 and Messier 82

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Messier 81 and Messier 82

Messier 81 and Messier 82

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