Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5473  ·  NGC 5477
M101  with IDAS D2 filter, Ken Yasue
M101  with IDAS D2 filter
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M101 with IDAS D2 filter

M101  with IDAS D2 filter, Ken Yasue
M101  with IDAS D2 filter
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M101 with IDAS D2 filter

Equipment

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Description

m101 from backyard with IDAS D2 filter.

The plan was 6,7 hours exp totally but in the end I succeed only 3 hours... classic !

It was noisy and there are wired donuts shadow ( probably dust on optics ) , but in a whole I think the result was not bad.

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M101  with IDAS D2 filter, Ken Yasue