Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  Pinwheel galaxy
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M101 in Ursa Major, Bob Stevenson
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M101 in Ursa Major

Getting plate-solving status, please wait...
M101 in Ursa Major, Bob Stevenson
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M101 in Ursa Major

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Description

I am continuing to try to get good colour in my images. This image was shot using my Super C8 and ASI1600MM. I added some Ha to the RGB data, but I'm not sure this was apparent in the final version.

I am impressed that the CEM25 is able to carry the C8 at 1260mm with a heavy focuser, filter wheel and camera. That lightens the load during set up and tear down.

In particular, the Ha subs were 10 minutes and turned out well. This is making me think about other targets with longer exposures on this mount.

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M101 in Ursa Major, Bob Stevenson