18 Oct
2011
18 Oct
'11
1:41 a.m.
Hi Josh, On 18 Oct 2011, at 01:28, Josh wrote:
Great shot patrick!
Thanks.
It looks like there is some other movement in the shot. Any idea on what it was?
If you're looking at the same things I am they are called hot pixels. Basically defects in the image. I run my images through a program that removes most of them but it usually leaves a few behind. (BTW, in the days of film astrophotography we called things like that "Kodak stars" <g>). The way to tell the difference between hot pixels and something real is the real objects will move evenly in a straight line though all of the images. Hot pixels tend to not be in all the images and tend to bounce around. Cheers, patrick p.s. Very nice night tonight.