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View Full Version here: : My best Uranus - 15/09/2006


iceman
18-09-2006, 01:41 PM
Hi all

Here's Uranus, captured on Friday night 15th September, with my 10" dob on EQ platform, DMK21AF04 with both 3x barlow and 5x powermate.

Like Neptune, I really could've done with some longer exposures but my tracking couldn't support it. Even with 1/2s exposures, I got a little trailing/elongated shape on some frames where the tracking jumped around.

There's some resampled images in here as well, which held up quite well thanks to the planet being devoid of detail :)

180-200 frames were stacked in each channel. The last 2 images were also combined with a luminance layer. Each channel was captured for 1 minute.

I'm very happy with these, they're my best images of Uranus so far. I doubt I can do much better than this without more focal length, more accurate tracking and a longer exposure.

Thanks for looking.

John K
18-09-2006, 04:07 PM
Great images Mike. You should perhaps consider submitting these to the ALPO Japan website where there are some interesting observations being submited at the moment examining potential polar brightening on Uranus.

http://www.kk-system.co.jp/Alpo/Latest/Uranus.htm

EzyStyles
18-09-2006, 06:02 PM
im not really a planet person but those pics ... :prey2: :prey2: :prey2:

great work!

Dennis
18-09-2006, 06:13 PM
Gee Mike, those are excellent images. Thanks for the useful capture details too - all grist to the mill for convincing me to get a DMK! Hopefully soon.

Cheers

Dennis

iceman
18-09-2006, 07:17 PM
Thanks guys..

And Dennis, for more reasons, these were captured at 100% gain.. The background is BLACK!!!!! I didn't even need to clip the blackpoint to get a black background.

jjjnettie
18-09-2006, 09:15 PM
Very impressive work Mike.

davidpretorius
18-09-2006, 09:27 PM
mike, these are simply fantastic!