Horsehead Nebula Pentax SDUF II - 100mm f/4 ccd Sbig ST-10XME Location: Colma di Sormano, Italy - November 19, 2003 L(R) - RGB 150 min. L(R)=15x5 min binned 1x1 R=5x5 min binned 2x2 G=5x5 min binned 2x2 B=5x5 min binned 2x2
