Sunspot drawing of 1961-3-7

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https://doi.org/10.7891/e-manuscripta-92598



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1961-03-07
07:30
Hs 1304.5:1283
https://doi.org/10.7891/e-manuscripta-92598
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
56 18 10 B -10.7 305.4
59 30 19 D 3.3 310.5
2 48 29