Re-discover the Night Sky #2: stacking images in Gimp

Stacking time-lapse photos of the night sky allows you to create 'star-trail' images.

It is possible to get good results using Gimp by selecting the appropriate layer mode.

This post also describes how I hacked one of the existing Gimp scripts.

The Gimp: replace that boring sky

Getting the exposure right for landscape photography can be challenging.

You may end up with your subject just right but the sky burnt out, or an interesting sky but a foreground that is too dark.

Or you could just cheat by combining 2 images using a photo editor.