Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5451  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5471
M101 Pinwheel Galaxy, Krishna Vinod
M101 Pinwheel Galaxy
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M101 Pinwheel Galaxy

M101 Pinwheel Galaxy, Krishna Vinod
M101 Pinwheel Galaxy
Powered byPixInsight

M101 Pinwheel Galaxy

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Description

It was a week of daily clouds after the last M51 imaging session. This time, I went for another small galaxy in the vicinity of the Big dipper "handle". Again, pleasantly surprised with the detail possible from a 60mm refractor on a SkyGuider Pro. This was also my longest integration time to date. Collected data for 3 hours (90x 120s), but had to drop 6 frames due to weird RA shake that elongated all the stars.

This is a crop-in of the full frame, of course. The tiny dwarf glaxy NGC 5474 was also in the capture. It was nice to be able to see its 3 tiny spiral arms and nucleus pulled to one side close to M101 due to the interaction forces. Unfortunately, it was off to the very edge of the frame and there was coma issues clearly seen (I am currently imaging without the coma corrector on the AT60ED).

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M101 Pinwheel Galaxy, Krishna Vinod