Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5477
M101 @ 2 focal lengths (testing APM 1.5x Barlow), Ivan Nair
M101 @ 2 focal lengths (testing APM 1.5x Barlow)
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M101 @ 2 focal lengths (testing APM 1.5x Barlow)

M101 @ 2 focal lengths (testing APM 1.5x Barlow), Ivan Nair
M101 @ 2 focal lengths (testing APM 1.5x Barlow)
Powered byPixInsight

M101 @ 2 focal lengths (testing APM 1.5x Barlow)

Equipment

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Description

After imaging M101 for 2 nights @750mm I added a 3rd night of just Lum data with the APM 1.5x barlow giving an effective focal length of 1125mm @ f7.5

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M101 @ 2 focal lengths (testing APM 1.5x Barlow), Ivan Nair