Mewlon-300CRS with Reducer F7.2　fl.2160mm Bitran BJ-53L Starlight Xpress OAG
AstroDon Ha OIII filter Ha80min. OIII60min. AOO R=Ha G=OIII B=OIII 07/09-10/2013(JST)
StellaImage7,CCDStack2, MaxIm DL5.23 & PhotoshopCS6

NGC6888"Crescent Nebula" Bright Nebula in Cygnus
20h12m00.0s +38 21 00 Diam18x13 C