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Werkgroep Zon
De Werkgroep Zon is één van de werkgroepen van de Vereniging Voor Sterrenkunde en groepeert de VVS leden die geïnteresseerd zijn in het waarnemen en de studie van onze nabije ster, de zon. Sinds 1976 werkten ongeveer 160 waarnemers mee en verrichtten samen meer dan 50.200 waarnemingen.


Werkgroepleider
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.

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