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Contains:  M 82, Bode's nebulae, NGC 3034
Getting plate-solving status, please wait...

Technical card

Resolution: 3343x2646

Dates:Jan. 14, 2019

Frames:
Astrodon Tru-Balance LRGB E-Series Gen 2 Blue: 24x600" bin 1x1
Astrodon Tru-Balance LRGB E-Series Gen 2 Green: 24x600" bin 1x1
Astrodon Ha 3nm: 24x1200" bin 1x1
Astrodon Tru-Balance LRGB E-Series Gen 2 Luminance: 48x600" bin 1x1
Astrodon Tru-Balance LRGB E-Series Gen 2 Red: 24x600" bin 1x1

Integration: 28.0 hours

Avg. Moon age: 7.60 days

Avg. Moon phase: 52.30%

Astrometry.net job: 2472782

RA center: 148.942 degrees

DEC center: 69.627 degrees

Pixel scale: 0.744 arcsec/pixel

Orientation: 90.135 degrees

Field radius: 0.441 degrees

Locations: E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Unknown

Description

Messier 82 (NGC 3034) – the Cigar Galaxy - is approximately 12 million light years away in the constellation of Ursa Major. It was first observed by Johann Elert Bode on 31 December 1774.

The core of M82 is an area of intense star formation, considered to be a result of gravitational interaction with nearby Messier 81. Radiating out from the core of M82 are streams of gas that are especially striking in Ha. These wisps extend out some 34,000 light years from the core - the galaxy is 42,000 light years long. (Information adapted from: O’Meara, SJ, The Messier Objects: Second Edition: Cambridge University Press – 2014.)

UPDATE (thanks to Sigga – see her comments below): To the left and slightly above the galaxy there is a small arc of nebulosity visible in the Ha data. This has been dubbed ‘the cap’ - it consists of galactic halo material that has been ionized by the superwind shock or intense ultraviolet radiation from the young, massive stars in the galaxy's core (APOD). This ‘cap’ is around 35,000 light-years from the galaxy.

Messier 82 was imaged between 31 December 2018 and 14 January 2019 from a remote imaging rig in Spain owned and operated by Barry Wilson and Steve Milne.

Capture details are as follows:

Telescope: TEC140
Camera: QSI 690
Filters: Astrodon NB 3nm
Mount: 10 Micron GM2000HPS

Ha: 24 x 1200s
Lum: 48 x 600s
Red: 24 x 600s
Green: 24 x 600s
Blue: 24 x 600s

A total of 28 hours exposure.

Data capture: Steve Milne & Barry Wilson
Image Processing: Steve Milne

Comments

Author

gnomus
Steve Milne
License: None (All rights reserved)
4785
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Revisions

B

Slight 'lift' to background

C

Annoying little text saying 'Annotation' in top left corner removed - seemed to be put there by PixInsight! I only just noticed it...

Sky plot

Sky plot

Histogram

Messier 82 in Ursa Major, 





    
        

            Steve Milne