Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5477
M101 in HaLRGB, Volker Gutsmann
M101 in HaLRGB
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M101 in HaLRGB

M101 in HaLRGB, Volker Gutsmann
M101 in HaLRGB
Powered byPixInsight

M101 in HaLRGB

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Description

Two clear nights resulted in almost 9 h of total exposure time for M101. Almost 2 hours of Ha went into this. The final non-linear LRGB was blended with non-linear Ha using the Pixinsight NBRGB Combination script which is surprisingly easy to use.

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M101 in HaLRGB, Volker Gutsmann

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Imaged with APT