Dubois , Langemark Belgium
36 years observations of the sun 1982-2017
Graph of my own observations of the last two solar cycles , starting 1983 !
Red line are monthly oberservations, black line 7 months smoothed sunspot numbers.
Remarks and suggestions are welcome
Special thanks to Vanbeselaere Johan ( A.C.G. Belgium )
Visit Johan's site about Mirror cell design help
Last updated: April 26, 2017 !
First counter started on 5/12/1997 till 3/09/2006 with 42842 hits!