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solar observing

Title Posted By Updated/commented date Typesort icon
What are sunspots? Matthew Templeton 2 years 32 weeks ago Page
SID Database Matthew Templeton 15 hours 13 min ago Page
Accuracy and Consistency in the Production of the American Sunspot Number (Ra) Matthew Templeton 47 weeks 5 days ago Page
SunEntry - A sunspot data entry program BSJ 15 weeks 6 days ago Page
AAVSO Sudden Ionospheric Disturbance Program Observers Matthew Templeton 3 weeks 4 days ago Page
Dances with Wolfs: A Short History of Sunspot Indices Matthew Templeton 28 weeks 5 days ago Page
Solar Bulletin Matthew Templeton 15 hours 20 min ago Page
AAVSO Solar Section Update for 2013 Matthew Templeton 1 year 33 weeks ago Page
The Gyrator III VLF Receiver Matthew Templeton 2 years 39 weeks ago Page
The Zurich Classification System of Sunspot Groups Matthew Templeton 3 years 13 weeks ago Page
Solar News Matthew Templeton 1 year 34 weeks ago Page
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