NGC4631 in Canes Venatici
Magnitude 9.3 Size 15.1''
No Filter ; 5min~25(2023 / 2 / 26)
IR640 ; 5min~42 (2023 / 2 / 27)
B;5min~45 (2023 / 4 / 9)
HΏ; 5min~49 (2023 / 1 / 30, 3 / 7)
21 f6.0 Newtonian
ASI533MMpro
(―ir2023N7fΪ)
L;10min~63(2010 / 2 / 19, 20 3 / 9 , 21)
R;10min~10 B;10min~8 (2~2binning) (2010/2/6)
21 f6.0 Newtonian ST7XME
(―ir2010N7fΪ)