All daily drawings of the sunspot groups and USSPS produced by INAF - Catania Astrophysical Observatory from 2009 up today are available in this page. The drawings of sunspot groups and pores are maken by a Cooke refractor (150mm/2230 mm) on a 24.5 cm diameter projected image of the Sun.
By Catania Solar Observatory Hits: 61 | Votes: 0 | Rating: 0.00
About Daily Sunspots groups
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