%0 Journal Article %A Hayakawa, H. %A Iju, T. %A Murata, K. %A Besser, B. P. %D 2021 %8 Array %P 194 %T Daniel Mögling's sunspot observations in 1626-1629: A manuscript reference for the solar activity before the Maunder Minimum %V 909 %R 10.3847/1538-4357/abdd34 %J Astrophys. J.