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Massive sunspot
Lunt Customer
Solar Probes 26-jun-2021
Andrej Duboš
Sun H-alpha 26-jun-2021
Andrej Duboš
First Shot of 40mm H Alpha Telescope
Kyu Seob Kim
The Sun - Ca-K & H-Alpha comparison
salvolauricella
Sun H-alpha 20-jun-2021
Andrej Duboš