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FORUMS Photo Sharing & Discussion Astronomy & Celestial 
Thread started 27 Dec 2008 (Saturday) 21:02
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How to best PP comets?

 
dpastern
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Dec 27, 2008 21:02 |  #1
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I took some (not very good) images of Comet McNaught, and I'm thinking of finding them amongst my mass DVDs of raw images lol, and working on them a bit. Any tips for PP comets?

Dave

PS the comet shots aren't very good I'm afraid, or at least I think so. I'll post when I find them and do some PP for CC...


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Celestron
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Dec 27, 2008 22:28 |  #2

really depends how much detail you have . Most comet images are PP very little cause too much PP you will loose detail on the tail if you have any at all . Look in the Deep Space object page on my website and i have a image of Comet Bradfield i took back in 04' . I did very little PP on this image . Of course this was taken with film camera but as you can see it has a long tail and this comet was noted as having the longest tail of of comets for many yrs dating back in the early 1900s' . But had i over PP this would not show this much . My point is maybe your image needs no PP or very little . Just depends on the amount of detail you actually captured . Check out this animation from APOD (external link) of Comet Bradfield rising . Here is a nice gallery on Comet Bradfield (external link) . These links are so you can see how much detail is in most comets .




  
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dpastern
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Cream of the Crop
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Location: Ipswich, Queensland, Australia
     
Dec 28, 2008 05:55 |  #3
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They had minimal detail in the tail - taken from the city, and were around late Jan/early Feb, so the comet was low in the sky and had lost most of its brightness. I had chances to grab comet shots on Jan 21st, but didn't do a very good job at all :( Very terrible shots actually. My old 1D had terrible hot pixel issues, anything above 20 seconds and blah, ugly with hundreds of hot pixels. We had bad cloud cover and also some rain from the 22nd through to the 2nd set of shots, which were better, but by then the comet had lost its brightness as I said. :(

It also didn't help that I don't think I accurately focused on it properly in the 2nd set of shots, and they were again, from the city. Not having a car really didn't help me :(

Thanks for the tips. I'll post when I find them.

Dave


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How to best PP comets?
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