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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 4 days 10 hours ago Page
Accuracy and Consistency in the Production of the American Sunspot Number (Ra) Matthew Templeton 48 weeks 2 days ago Page
SunEntry - A sunspot data entry program BSJ 16 weeks 3 days ago Page
AAVSO Sudden Ionospheric Disturbance Program Observers Matthew Templeton 4 weeks 1 day ago Page
Dances with Wolfs: A Short History of Sunspot Indices Matthew Templeton 29 weeks 2 days ago Page
Solar Bulletin Matthew Templeton 4 days 10 hours ago Page
AAVSO Solar Section Update for 2013 Matthew Templeton 1 year 34 weeks ago Page
The Gyrator III VLF Receiver Matthew Templeton 2 years 40 weeks ago Page
The Zurich Classification System of Sunspot Groups Matthew Templeton 3 years 13 weeks ago Page
Solar News Matthew Templeton 1 year 35 weeks ago Page
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