The Bubble Nebula is a hydrogen-
This image is a composite of shots from two sessions. The area immediately around the bubble is from my AP 142 at f/7.5 (1065mm focal length), while the rest of it was done with the AT111EDT at f/5.6 (622mm fl).
The wide shot was the first image I captured with my Astro-
This is a great target. In addition to the unique look of the bubble, there are interesting areas all around it that can make for a good composition at many different focal lengths.
Scope: AT111EDT at f/5.6 & AP 142 at f/7.5
Mount: AP Mach1GTO
Camera: QSI 583 at –
Exposure (wide): 12 x 900s H-
Exposure (bubble): 6 x 900s H-