OOPS, I meant his 1976 photos of Comet West. -- jb --- On Wed, 4/15/09, Joe Bauman <josephmbauman@yahoo.com> wrote: From: Joe Bauman <josephmbauman@yahoo.com> Subject: [Utah-astronomy] Messin' with Patrick's pics To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Date: Wednesday, April 15, 2009, 4:29 PM Just for fun, I tried using the relatively new technique of stacking Patrick's two magnificent 1975 views of Comet West. I *think* the sigma clip version provided a better composite, at least with less grain and possibly more detail in the comet's tails. The "sum" version seems too harsh to me, but may not be. I posted the two photos as Patrick put them on the SLAS Gallery, then the two that I made by combining his with different techniques. Anyway, let me know what you think: http://www.slas.us/gallery2/main.php?g2_itemId=80 Thanks, Joe       _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com