02/07/2002　22:22　Takahashi BRC-250　Bitran BJ-31LCCD camera
　L10min.x22　R5min.x3(2x2)　G5minx2(2x2)　B5minx3(2x2)
Tokai TYPEIII RGB filter　　LPS-P1 filter　StellaImage3　LRGB Photoshop6.0

NGC3031 (M81 Galaxy in Ursa Major)　
09h55m38.5s +69 03 40Dim Mag(V)26.9'x14.1' SB13.2 SA(s)ab I-II