Unbelievable ISS Star Trails

Don Pettit transmitted some info about detailed methods used to attain the images: “My star trail images are made by taking a time exposure of about 10 to 15 minutes. However, with modern digital cameras, 30 seconds is about the longest exposure possible, due to electronic detector noise effectively snowing out the image. To achieve the longer exposures I do what many amateur astronomers do. I take multiple 30-second exposures, then ‘stack’ them using imaging software, thus producing the longer exposure.”

This post was written by Umer Abrar. To contact the author of this post, write to mirzavadoodulbaig@gmail.com or add/follow him on facebook :

Unbelievable ISS Star Trails Unbelievable ISS Star Trails Reviewed by Umer Abrar on 8/04/2014 Rating: 5

No comments:

Powered by Blogger.