Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5461  ·  NGC 5471
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What colour is M101?, Olly Penrice
What colour is M101?
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What colour is M101?

Getting plate-solving status, please wait...
What colour is M101?, Olly Penrice
What colour is M101?
Powered byPixInsight

What colour is M101?

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Description

This a hybrid TEC140/ODK14 image jointly captured with Yves Van den Broek. Approx. 30 hours in HaLRGB, all from Les Granges in SE France.

Like most people I usually end up presenting a galaxy with reddish core and blue spiral arms but it was pointed out on a thread on SGL that the Hubble image does not confirm this. With the HST result in mind I tried again and came up with this rendition.

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What colour is M101?, Olly Penrice