03/19/2002　22:54　Takahashi BRC-250　Bitran BJ-31LCCD camera
　L10min.x18　R5min.x3(2x2)　G5minx2(2x2)　B5minx2(2x2)
Tokai TYPEIII RGB filter　　LPS-P1 filter　StellaImage3　LRGB Photoshop6.0

NGC4631 (Galaxy in Canes Venatici)　
12h42m04.1s +32 32 12 Mag(V)9.2 Dim12.8'x2.4' SB12.8 SB(s)d sp III