I took an image from the Gulf of Mexico in NGC7000 with 7 channels: L R G B Ha OIII Hb. Exposure time was 70 minutes for L, R, G , B with subs of 5 minutes, 820 minutes for Ha, 300 minutes for OIII and Hb with 20 minutes subs.
Especially the line filters gave great color to the image. At the “coast” of the gulf you see a light which I extracted to the small image below. I do not know what this light is. If you know please tell me.
A Zoomify is found in the menu of the new images.