From: Ginger Mayfield (chikadee_at_antispamdomain.not)
Date: Mon Jun 23 2003 - 17:25:03 EDT
That's beautiful, Johannes!! And it even looks like North America!
Whenever someone shows it to me in a scope I never can figure out where
anything is.
Ginger
Johannes Schedler wrote:
>
> Yesterday I was short of sleep and took a lot of images from NGC7000
> in this warm midsummer night.
>
> The first results with 5 min at ISO800 and mag 5 sky in white light
> were disappointing, as almost no nebula showed up and the background
> was grey.
>
> So I tried the Lumicon 2" UHC filter with >95 transmission in H-beta,
> O3 and H-alpha. 10 min shots at ISO1600 resulted in a blue nebula
> with some red lines, but it was there!
> See the details and result after a lot of processing, color shifting
> and blurring with masks to reduce the noise:
>
> http://panther-observatory.com/deepsky.htm#78
>
> Later this week I will include the filtered raws to my 10D review.
>
> Hope to get some more efforts for comparison on this object from you
> (Rick, Mike, Mark?)
>
> Johannes
>
>
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