Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5473  ·  NGC 5477
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M101 ou galaxie du Moulinet, dreamdeepsky
M101 ou galaxie du Moulinet
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Getting plate-solving status, please wait...
M101 ou galaxie du Moulinet, dreamdeepsky
M101 ou galaxie du Moulinet
Powered byPixInsight

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Description

Image developed from LRGBHa image series, total exposure approx. 8 hours. Sky watcher 120 APO triplet spirit, dedicated corrector, AZEQ6 mount, Moravian G2 8300 imager, PHD2 guidance in the optical axis of the imager

Image processing with PixInsight and PS3 Extended

This giant spiral disk of stars, dust and gas is 170,000 light-years across, or nearly twice the diameter of our Milky Way galaxy. M101 is estimated to contain at least one trillion stars.

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M101 ou galaxie du Moulinet, dreamdeepsky