M45 Pleiades

1999/10/21 04:20(JST)
170mm(SIGMA APO 170-500 F5-6.3), ST-7
L=18min, R=G=10min(2Å~2 binning), B=15min(2Å~2 binning)

NGC6992

1999/10/20 22:00(JST)
170mm(SIGMA APO 170-500 F5-6.3), ST-7
L=30min, R=G=B15min(2Å~2 binning)