By Bill Kozar | 2024-11-30
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Sunspots
On 12/01/2024 02:00 pm by Eliot Herman| Tucson AZ
With SDO down I was motivated to get my gear up and running to monitor Sunspots.
White light and sodium band Lunt wedge and Tak 120 mm or Sodium Center Andover Corp sodium pass filter and Lunt Wedge with Tak 120 mm.
Calcium K line Lunt 80 mm and Lunt filter
Photoshop