Orion : Hydrogen alpha image

Horsehead Nebula in Orion

Orion is the most impressive constellation in the night sky. There are some well-known nebula in the costellation such as Orion Nebula, Horsehead Nebula and M78 Nebula.
This is a 3 frame mosaic using the STL11K and Canon EFlens, in Hydrogen Alpha.

Imaging information

Optics: Canon EF100mm f2.8 Macro lens

Camera: SBIG STL-11000M, Astronomik Hydrogen alpha filter, Vixen SXD Mount

Total Exposure: 4hours, 3 frame Mosaic, an exposure of each frame = 20minutesx4

Software: Stellaimage5, PhotoshopCS

Location: Yoshinaga town, Okayama Prefecture, 2007