Quote:
Originally Posted by U.K.Cowboy
Thanks Trevor! I've been putting some images from that night over a 30 min period together for an animation and I think I can see that NEB detail. I need to figure out how to do a animated GIF as my usual youtube option is too rough for this subtle detail.
The Hex is rounder on the derot image (when I checked the polar projection) Trevor though maybe I should be splitting the 6 min avis into 3 mins and running those stacks through winjuop, maybe the 6 min stacks are causing some rotational blur do you think that could be possible?
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I think consecutive short captures work very well. Some food for thought Stuart, check out this R channel I have attached. This is the R channel from 3 consecutive RGB data sets. Each channel was captured for 93 seconds and as I am in the habit of always starting the R channel on a half minute increment, that means there was a 1 minute gap between the first & second RGB as well as between the second & third RGB.
From the start of the first R to the end of the final B is 17 minutes. From the start of the first R to the end of the third R is 13.5 minutes. If you look closely at this R channel image the hex is very well defined as is the fine detail across the image, there is no smearing. This particular image was used as a reference image early in May by a professional research team imaging with Subaru and NASA's IRTF telescopes in Hawaii.
Of course using a colour camera will be different, however I think what I have demonstrated with this image would suggest that multiple shorter runs with the colour camera should be worth a try.
I cannot emphasize enough how critical the placement of the outline is in WinJUPOS that creates the IMS files that are then used to combine & derotate your individual data sets.
Good luck with it.
Regards
Trevor
Look what you are missing out on, this is a North polar projection showing the hex storm quite nicely. This was combining 2 avis taken at 21.41 and 21.48 UT when seeing was at its best.
