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solar observing

Titlesort icon Posted By Updated/commented date Type
What are sunspots? Matthew Templeton 3 years 25 weeks ago Page
The Zurich Classification System of Sunspot Groups Matthew Templeton 4 years 6 weeks ago Page
The Gyrator III VLF Receiver Matthew Templeton 3 years 32 weeks ago Page
SunEntry - A sunspot data entry program BSJ 3 weeks 21 hours ago Page
Solar News Matthew Templeton 2 years 27 weeks ago Page
Solar Bulletin Matthew Templeton 5 days 16 hours ago Page
SID Database Matthew Templeton 2 weeks 6 days ago Page
Dances with Wolfs: A Short History of Sunspot Indices Matthew Templeton 1 year 21 weeks ago Page
Accuracy and Consistency in the Production of the American Sunspot Number (Ra) Matthew Templeton 1 year 40 weeks ago Page
AAVSO Sudden Ionospheric Disturbance Program Observers Matthew Templeton 48 weeks 5 days ago Page
AAVSO Solar Section Update for 2013 Matthew Templeton 2 years 26 weeks ago Page
AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484