Orion Diffuse Nebula "Horse head nebula"(Contributor: Genjin)

2001.12.22 at Nagasawa, Hanno-city, Saitama
Vixen Shumit-Newtonian D140mm/f500mm/F3.6 Reflector + Takahashi JP Equatorial + Skysensor2000
Direct focus
Manual guide with a guide scope D60mm X225
Cooled CCD caemra : Bitran BJ-30C at -10deg.
Exposure : 300sec.X4


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