Sunspot drawing of 1973-3-17

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https://doi.org/10.7891/e-manuscripta-97464



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1973-03-17
09:15
Hs 1304.5:5012
https://doi.org/10.7891/e-manuscripta-97464
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
69 28 D -7.1 339.0
70 13 E -13.2 330.8
73 1 A -12.6 318.1
74 3 B 15.3 223.0
75 1 A -16.5 304.8
5 46