ASO Solar Observations.

Sunspots Observation 2012 April

Year:  2012
Month: April

OBSERVER:      German Morales C.
               Astronomia Sigma Octante

Instr.:  SCT 
    Fl:  2000mm    Aperture:  200mm    Aperture stop used:  90mm

    Method:  Projection    Image diameter: 140mm


Day  UT  Q  g   s   R Ng  Ns  NR Sg  Ss  SR  cR   CV  IS M Cld Remarks     

  1 1320 4  3  19  49  1  11  21  2   8  28   0   51  22     0 
  2 1410 4  5  30  80  2  20  40  3  10  40  40   51  34     0 
  3 1820 3  3  25  55  2  21  41  1   4  14  22   51  28   100 st. cirrus  
  4 1530 3  3  20  50  2  18  38  1   2  12  20   57  23   100 cirrus      
  5 1600 3  2  29  49  2  29  49  0   0   0  17   38  31   100 cirrus      
  6 1550 3  2  22  42  2  22  42  0   0   0  16   36  24    40 cirrus      
  7                                                      ! 100 rAIn        
  8 1600 3  1   1  11  0   0   0  1   1  11   0   10   1    25 cirrus      
  9 1600 3  0   0   0  0   0   0  0   0   0   0    0   0     0 
 10 1920 3  1   2  12  0   0   0  1   2  12   0    4   3    85 
 11 1640 3  3  15  45  2  13  33  1   2  12  33   30  18    75 
 12 1930 3  3  21  51  2  20  40  1   1  11  40   33  23    85 
 13 1510 4  3  31  61  2  26  46  1   5  15  30   48  34     5 
 14 1520 4  5  27  77  3  22  52  2   5  25  23   47  32    10 cirrus      
 15 2030 3  4  24  64  2  13  33  2  11  31   0   80  28    85 
 16 1530 3  3  18  48  1   6  16  2  12  32   0   63  21     0 
 17 1730 3  6  40 100  3  18  48  3  22  52  15   63  46    75 
 18 1540 3  6  73 133  2  22  42  4  51  91  85  117  79   100 st. cirrus  
 19 1450 4  7  75 145  3  27  57  4  48  88 111  124  82     0 
 20 1730 3  7  79 149  2  18  38  5  61 111  79  128  86    70 cirrus      
 21 2000 3  6  73 133  2  22  42  4  51  91  78  118  79   100 cirrus      
 22 1520 3  6  92 152  2  24  44  4  68 108  87  114  98    20 
 23 1540 4  6  95 155  2  22  42  4  73 113 106  164 101     0 
 24 1810 3  5  70 120  3  36  66  2  34  54  72   76  75    10 
 25 1620 3  7  59 129  4  27  67  3  32  62  66   84  66    60 cirrus      
 26 1710 3  6  40 100  3  22  52  3  18  48  40   70  46   100 cirrus      
 27                                                      ! 100 rain        
 28 1650 3  6  44 104  2  18  38  4  26  66  20   72  50    80 cirrus      
 29 1750 3  6  41 101  1   8  18  5  33  83  36   93  47    30 cirrus      
 30 1500 3  6  46 106  2   9  29  4  37  77  52  108  52    20 


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Sunspots observation summary
Year:  2012
Month: April

OBSERVER:      German Morales C.
               Astronomia Sigma Octante

Monthly Mean     R =  82.9     

                NR =  36.9    SR =  46.0    cR =  38.9

                CV =  68.9    IS =  43.9

                 Q =   3.2   Cld =  52.5%

The Sun has been observed 28 days on 30 possible.
2 cloudy days impede observe the Sun

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Column Headings

UT:     UTC at middle of observation
Q:      Quality seeing
        1 Bad, 2 Poor, 3 Fair, 4 Good, 5 Excelent

R:      Wolf relative number for whole disc
         g: Total Groups,  s: Total Spots
NR:     Wolf Relative number North hemisphere
         Ng: North Groups,  Ns: North Spots
SR:     Wolf Relative number South hemisphere
         Sg: South Groups,  Ss: South Spots
cR:     Wolf Relative number Central
CV:     Classification Value after Malde for whole disc
IS:     Inter Sol index for whole disc

M:   !  Cloudy all day
     *  Cloudy at observation hours
     X  Impossible to make any kind of observation
Cld:    Percentage of cloudy sky

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