Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5477
M101 & NGC 5477 (HaRGB), Mike Oates
M101 & NGC 5477 (HaRGB)
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M101 & NGC 5477 (HaRGB)

M101 & NGC 5477 (HaRGB), Mike Oates
M101 & NGC 5477 (HaRGB)
Powered byPixInsight

M101 & NGC 5477 (HaRGB)

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Acquisition details

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Description

Taken over 6 nights from 27 Dec 2014 to 6 Feb 2015. Made using Ha and separate R, G, & B filters. This image is a crop from a [url= http://www.astrobin.com/156674/B/]wider field [/url]. All processing is done in PixInsight.

The Ha exposures were of different lengths, 600, 900, 1200 & 1800s.

NGC 5477 is a small galaxy to the left of the image.

I never thought I would be able to take RGB images from my home in light polluted Manchester UK. I believe this is only possible due to the Astrodon filters I use which has a slight gap between the green and red. The subs I have used here are just 180s but I know I can go up to about 8min which I will be doing from now on.

Note: The first upload was the wrong scale, the second version is the correct size.

Comments

Revisions

  • M101 & NGC 5477 (HaRGB), Mike Oates
    Original
  • Final
    M101 & NGC 5477 (HaRGB), Mike Oates
    B

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M101 & NGC 5477 (HaRGB), Mike Oates