Bubble Nebula

Narrowband

The Bubble Nebula really is a bubble within an expanding molecular cloud, carved out by the stellar wind of an extremely hot and energetic star. It lies about 11000 light years distant in the constellation of Cassiopeia, and is nearby the beautiful open cluster M52.

Takahashi Sky 90 at f/4.5
SBIG STL-4020M (remote guide head)
Takahashi EM-200
H-alpha: 3h (20 minute subexposures)
OIII: 4h40m (20 minute subexposures)
SII: 4h (20 minute subexposures)
Processed with Maxim/DL, CCDStack, and Photoshop CS4
Noel Carboni's Astronomy Tools

HaRGB (with M52 & NGC 7538)

The largest object in this image is the well-known Bubble Nebula and its surrounding region. At the bottom left is another bright nebula, NGC 7538. At the bottom right is the open cluster Messier 52.

Takahashi Sky 90 at f/4.5
SBIG STL-4020M (self-guided)
Hutech LPS Filter
H-Alpha: 120 minutes (12 minute subs)
R:30, G:30, B:30 (5 minute subs)
Processed in Maxim/DL and Photoshop
Noel Carboni's Astronomy Tools Actions