Mewlon-300CRS with Reducer F7.2　fl.2160mm Bitran BJ-53L Starlight Xpress OAG
AstroDon SII Ha OIII filter SII100min. Ha120min. OIII100min. SAO R=SII G=Ha B=OIII 01/27-28/2014(JST)
StellaImage7,CCDStack2, MaxIm DL5.23 & PhotoshopCC

NGC3587 "M97 Owl Nebula" Planetary Nebula in Ursa Major
11h14m47.8s +55 01 09 Diam170" Mag(p)12.0 Mag(v)9.9 C