Takahashi FSQ-106　Bitran BT-218ME
L10min.x4 R5min.(2x2)x2　G5min.(2x2)x2　B5min.(2x2)x4
Tokai LPS-P1 IDAS RVB filter　　LRGB

NGC3587 (M97　"Owl Nebula" Planetary Nebula in Ursa Major)
11h14m47.8s +55 01 09 Diam.>170" Mag.(v)12.0 Mag(V)9.9 Mag Cent Star16.0
NGC3556 (M108 Galaxy in Ursa Major)
11h11m29.6s +55 40 22 Mag.(V)10.0 Dim' 8.7x2.2 SB13.1 SB(s)cd sp III-IV