03/13/2002 20:19 Takahashi BRC-250 Bitran BJ-31LCCD camera
 L10min.x23 R5min.x2(2x2) G5minx2(2x2) B5minx2(2x2)
Tokai TYPEIII RGB filter  LPS-P1 filter StellaImage3 LRGB Photoshop6.0
NGC4490 (Galaxy in Canes Venatici) 
12h30m35.8s +41 38 26 Mag(V)9.8 Dim6.3'x3.1' SB12.9 SB(s)d pec III