PanLinx
English
eng-000
Zurich number
普通话
cmn-000
苏黎世数
普通话
cmn-000
黑子相对数
English
eng-000
Wolf number
English
eng-000
Wolf-Wolfer number
English
eng-000
relative number of spots
English
eng-000
relative sunspot number
English
eng-000
sunspot number
PanLex