15 Apr
2009
15 Apr
'09
4:30 p.m.
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