An Open Pinwheel

Hey !

I send you M. 101, “The open pinwheel”.

This is a very difficult galaxy with bright nucleus, but very
faint spiralarms.First I could observe a circular , big halo around the nucleus, but
after a time of observation I detected brighter areas in this diffuse halo.
I think the sketch shows the best I can do with this galaxy with my telescope!
I used pencil on white paper and inverted. The observation was made outside Trondheim city, Norway. More info
on my sketch!

Thank you very much for your comments!

Best wishes from Per-Jonny Bremseth, and very clear sky to you all!!

4 thoughts on “An Open Pinwheel”

  1. The spiral arms needs time to be seen, you’ve done a good job waiting at the eyepiece.

    Nice sketch!

    Stefano

  2. Per-Jonny

    That is really nice.

    Unfortunately M-101 is in the wrong hemisphere for me.

    Scott.

  3. This is a nice sketch and shows much patience. There is a trailing arm that falls away from the regular pattern that makes the overall shape appear somewhat like a trilobite. The straggling arm can be ferreted out once you know it’s there. The image drawn is remarkable for 20cm. Kudos.

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