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Contains:  M 82, NGC 3034, NGC 3027, M 81, Bode's nebulae, NGC 3031, NGC 2985, NGC 2976, The star 27UMa, The star 24UMa, The star 22UMa
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Mandel-Wilson 3 The Volcano Nebula, M81 & M82 IFN - LRGB 4 panel mosaic

Technical card

Resolution: 6031x4461

Dates:May 3, 2017

Astrodon E-Series Blue filter: 24x300" bin 1x1
Astrodon E-Series Green filter: 24x300" bin 1x1
Astrodon E-Series Red filter: 24x300" bin 1x1
Astrodon Luminance E-Series: 48x300" bin 1x1
Astrodon Luminance E-Series: 60x600" bin 1x1

Integration: 20.0 hours

Avg. Moon age: 7.77 days

Avg. Moon phase: 54.09% job: 1646168

RA center: 144.711 degrees

DEC center: 70.255 degrees

Pixel scale: 2.867 arcsec/pixel

Orientation: 91.036 degrees

Field radius: 2.987 degrees

Locations: Home observatory, Totnes, Devon, United Kingdom


I have added 90 minutes of RGB for each panel to my Luminance to give a total 20 hours.

An epic PixInsight mosaic merge and refinement of the RGB data. I took a chance and processed as I will not be able to return to this project for some time.

Integration LRGB data collected over many weeks so the date above is the process date.

"Integrated Flux Nebulae is the term coined to describe high galactic latitude nebulae that are illuminated not by a single star (as most nebula in the plane of the Galaxy are) but by the energy from the integrated flux of all the stars in the Milky Way. These nebulae clouds, an important component of the Interstellar Medium, are composed of dust particles, hydrogen and carbon monoxide and other elements. The dust is scattering blue light and is fluorescing a broad red spectrum of light known as the Extended Red Emission (ERE) that adds an additional broad-band emission to the red part of the spectrum. Therefore, on color images there are both blue and red components creating beautiful and interesting images. The dust clouds were known but the beautiful nebulae within them were not, and these are the first images of them." From the Mandel-Wilson Catalogue of Unexplored Nebulae, Steve Mandel.

C&Cs always welcome.



Barry Wilson
License: None (All rights reserved)



A slightly bolder approach

Sky plot

Sky plot


Mandel-Wilson 3 The Volcano Nebula, M81 & M82 IFN - LRGB 4 panel mosaic, 


            Barry Wilson

In these public groups

UK Astro-Imaging
Deep Sky Mosaics