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Belgian Solar Observer
The working group Sun is one of the sections of the belgian amateur-astronomers association VVS (= Vereniging Voor Sterrenkunde) and groups all the members who are interessted in the study of our nearby star, the sun. Since 1976, about 160 observers made more than 50.200 observations for the section.


Section leader
Franky Dubois
Poelkapellestraat 39
8920 Langemark
tel.: 057/48.93.28
astrosun@skynet.be
World net of Polar Faculae Observers

Observations in 2008

  
      Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 2.69  1.90  1.87  3.12  3.46  3.84  5.87
Mean South: 3.93  4.02  4.30  6.87  5.13  3.39  3.33
     Total: 6.62  5.94  6.17  9.99  8.59  7.23  9.20


      Yearly mean : 
Observers :
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Octaaf steen Belgium 102mm refractor F15 , 86X , Baader filter.
Jeffrey Carels Belgium 150mm refractor F8 , 60 X, Baader filter.
Gerard Deman Belgium 150mm refractor f15 Herchel optical wedge.
Gabriel André Belgium 250mm refractor f20 Herchel optical prism.
Guido Gubbels Belgium 114mm reflector f 7.8 solar screen

Observations in 2007

  
      Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 4.75  4.15  5.18  3.40  4.96  6.31  7.45  8.10  9.30  8.03  5.30  5.80  
Mean South: 6.77 13.80 12.29  7.40  7.60  5.81  3.34  3.00  3.20  3.30  2.78  4.35
     Total:11.52 17.95 17.47 10.80 12.56 12.12 10.79 11.10 12.50 11.33  8.08 10.15



Yearly mean : 12.20
Observers :
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Octaaf steen Belgium 102mm refractor F15 , 86X , Baader filter.
Jeffrey Carels Belgium 150mm refractor F8 , 60 X, Baader filter.
Gerard Deman Belgium 150mm refractor f15 Herchel optical wedge.
Gabriel André Belgium 250mm refractor f20 Herchel optical prism.
Guido Gubbels Belgium 114mm reflector f 7.8 solar screen

Observations in 2006

  
      Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 2.76  2.78  3.09  3.83  4.28  8.15  8.81  10.90 13.38 13.52  7.52  6.45   
Mean South: 6.16  5.75  8.17  9.40  7.35  8.16  5.12   4.80  3.96  3.36  4.20  5.66 
     Total: 8.92  8.53 11.26 13.23 11.63 16.31 13.93  15.70 17.34 16.88 11.72 12.11   
Yearly mean : 13.13
Observers :
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Octaaf steen Belgium 102mm refractor F15 , 86X , Baader filter.
Jeffrey Carels Belgium 150mm refractor F8 , 60 X, Baader filter.
Gerard Deman Belgium 150mm refractor f15 Herchel optical wedge.
Gabriel André Belgium 250mm refractor f20 Herchel optical prism.

Observations in 2005

  
      Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 2.11  2.74  1.52  3.57  3.57  4.97  6.14  5.50  6.02  6.16  6.09  4.94
Mean South: 5.25  6.02  5.64  8.22  5.54  4.09  2.77  2.33  2.39  2.59  3.13  4.37
     Total: 7.36  8.76  7.16 11.79  9.11  9.05  8.92  7.83  8.41  8.75  9.22  9.31
Yearly mean : 8.81
Observers :
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Octaaf steen Belgium 102mm refractor F15 , 86X , Baader filter.
Jeffrey Carels Belgium 150mm refractor F8 , 60 X, Baader filter.
Gerard Deman Belgium 150mm refractor f15 Herchel optical wedge.
Gabriel André Belgium 250mm refractor f20 Herchel optical prism.

Observations in 2004

  
      Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 1.63  1.14  1.93  4.16  3.22  2.34  2.13  4.99  7.43  3.31  5.74  2.22
Mean South: 2.83  3.46  5.59  2.34  2.95  3.85  4.58  2.23  2.30  2.00  3.71  4.39 
     Total: 4.46  4.60  7.52  6.50  6.17  6.19  6.71  7.22  9.73  5.31  9.45  6.61  
Yearly mean : 6.71
Observers :
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Octaaf steen Belgium 102mm refractor F15 , 86X , Baader filter.
Jeffrey Carels Belgium 150mm refractor F8 , 60 X, Baader filter.
Gerard Deman Belgium 150mm refractor f15 Herchel optical wedge.

Observations in 2003


     Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North:1.16  0.83  0.71  0.76  1.88  2.02  2.11  2.97  2.75  2.74  2.54  1.25   
Mean South:0.75  1.43  1.56  1.78  1.46  1.13  1.46  0.70  1.34  1.64  2.04  2.25
    Total :1.91  2.26  2.27  2.54  3.34  3.15  3.57  3.67  4.09  4.38  4.58  3.50
Yearly mean : 3.27
Observers :
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Octaaf steen Belgium 102mm refractor F15 , 86X , Baader filter.
Jeffrey Carels Belgium 150mm refractor F8 , 60X, Baader filter.

Observations in 2002


     Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North:0.43  0.28  0.33  0.54  1.42  1.65  2.28  2.04  2.18  1.48  2.19  1.93
Mean South:0.93  1.13  0.96  1.36  1.05  1.24  1.02  0.93  1.06  0.73  0.92  0.93
    Total :1.36  1.41  1.29  1.90  2.47  2.89  3.30  2.97  3.24  2.21  3.11  2.86
Yearly mean :2.42
Observers :
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Octaaf steen Belgium 102mm refractor F15 , 86X , Baader filter.
Jeffrey Carels Belgium 150mm refractor F8 , 60X, Baader filter.

Observations in 2001


     Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 0.92  0.88  0.13  0.58  1.68  1.20  1.87  2.12  1.58  0.69  0.83  1.67  
Mean South: 0.69  0.13  1.13  1.00  0.53  0.67  0.87  1.59  0.75  0.15  2.50  0.56
    Total : 1.61  1.01  1.26  1.58  2.21  1.87  2.74  3.71  2.33  0.84  3.33  2.23
Yearly mean :2.06
Observers :
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.

Observations in 2000


     Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 2.54  0.59  0.27  1.18  2.17  1.17  0.86  1.28  2.00  1.11  0.17  0.50 
Mean South: 5.50  3.88  2.77  3.65  4.00  1.00  1.00  1.08  1.25  1.56  0.33  0.50 
    Total : 8.04  4.47  3.04  4.83  6.17  2.17  1.86  2.36  3.25  2.67  0.50  1.00  
Yearly mean : 3.36
Observers :
Jan Janssens Texas USA, C8 , 68X , Full aperature filter
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.

Observations in 1999


     Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 2.92  2.50  3.2   3.58  5.39  4.60  5.70  5.78  6.86  4.70  7.90  1.97
Mean South: 7.92  7.61  8.91  5.15  5.44  2.80  3.10  2.86  1.61  3.25  5.38  4.47
    Total :10.84  10.11 12.11 8.73  10.83 7.40  8.80  8.64  8.47  7.95  12.56 6.44
Yearly mean : 9.41
Observers :
Jan Janssens Texas USA, C8 , 68X , Full aperature filter
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.

Observations in 1998


     Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 2.47  3.10  3.25  2.78  3.69  0.80  4.92  3.60  0.56  5.60  3.90  2.90
Mean South: 4.33  6.20  9.40  4.46  3.03  1.40  8.75  1.50  0.13  2.40  4.60  5.10 
    Total : 6.80  9.30  12.65 7.24  6.72  2.20  13.67 5.10  0.69  8.00  8.50  8.00 
Yearly mean : 7.41
Observers :
Jan Janssens Texas USA, C8 , 68X , Full aperature filter
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Filip Feys Belgium 110mm reflector F16 , 73X , solar screen.

Observations in 1997


     Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North: 2.5   2.2   1.9   2.8   1.9   4.4   1.9   3.4   5.6   6.5   8.4   4.3
Mean South: 5.8   8.1   7.2   6.2   3.6   3.4   1.1   2.6   2.3   6.7   6.3   4.1
    Total : 8.3   10.3  9.1   9.0   5.5   7.8   3.0   6.0   7.9   13.2  14.7  8.4
Yearly mean : 8.6
Observers :
Jan Janssens Texas USA, C8 , 68X , Full aperature filter
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Filip Feys Belgium 110mm reflector F16 , 73X , solar screen.

Observations in 1996


     Month: Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
Mean North:             0.5   0.8   0.4   1.0   2.9   6.26  3.2   2.4   6.1   4.5
Mean South:             4.1   3.5   2.4   1.2   1.1   3.24  1.7   1.3   3.7   6.8
    Total :             4.6   4.3   2.8   2.2   4.0   9.50  4.9   3.7   9.8   11.3
Yearly mean : 5.64
Observers :
Jan Janssens Texas USA, C8 , 68X , Full aperature filter
Franky Dubois Belgium 125mm refractor F20 , 83X , Herchel optical wedge+green filter.
Filip Feys Belgium 110mm reflector F16 , 73X , solar screen.

Copyright 2003 - 2010 Werkgroep Zon, Vereniging voor Sterrenkunde vzw