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Thread: M106

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    Default M106



    Hi, In an attempt to get a larger scale image than I get with my ED80, I got out the 8" Newtonian working at F5. I managed to get 10 x 420 secs usable subs, but halfway through the session I noticed that for some reason the gain on my QHY8L was set to 4 (it's normally set to 0 ) What effect would this have had on the image? I've noticed that the stars are not as sharp as I would like, is this a tracking, PA, or guiding issue? as I was guiding at 1000mm as opposed to 600mm with the ED80. As a separate question , as I use a IDAS lp filter do I have to increase the exposure times to obtain the same data as when not using the filter? Any criticism welcome , thanks for looking StuartM106 10X7 MINS.jpg
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    Default Re: M106

    Nice image.

    Your stars look fine. There is no trailing, so there is no tracking issue. I don't see any evidence of a guiding problem. What you are seeing is probably the effect of seeing conditions. They look not bad, actually, but the movement of the atmosphere will make the stars blob out a bit. A bit of deconvolution in the processing can reduce that.

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    Default Re: M106

    Nice image. Thanks for sharing.

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    Default Re: M106

    Hi Sgb. A very nice M106 image from you. A very nice core, and delicate spiral arm nebulosity and details. Even some of the dark dust lane areas show up in your capture. As Keith said, the star blooming is probably due to some upper atmospheric turbulence. Thanks for sharing this with us Sgb, and best wishes on your next astrophotography endeavor.
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    Default Re: M106

    Nice shot. You got great detail on the spiral arms.
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    Default Re: M106

    agree...nice detail on spiral arms...wonderful!!!!
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