M78 – Nebula


Bob Franke

Chino Valley, AZ USA

Telescope: 12.5″ RCOS Ritchey-Chrétien
Mount: Paramount Me
Aperture: 12.5″
Focal Ratio: F/9
Camera: SBIG STL11000M
Filters: AstroDon LRGB

Exposure Time (s)
Lum 240 min. (8 x 30 min.)
RGB 315 min. (7 x 15 min. each)

North is to the top.
M78 (NGC 2068) is the brightest reflection nebula of a group that also includes NGC 2064, NGC 2067 and NGC 2071. The group is located in the Orion Molecular Cloud Complex that is about 1,600 light years from Earth. M78 was discovered by Pierre Méchain in 1780 and catalogued by Charles Messier in the same year.