Sunspots Observation 2012 May

Year:  2012
Month: May

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 1620 3  7  45 115  2   8  28  5  37  87  62  124  52   100 st. cirrus  
  2 1600 3  7  36 106  1   1  11  6  35  95  46  136  42    20 cirrus      
  3 1550 3  8  34 114  2   6  26  6  28  88  55   80  42     0 
  4 1750 3  6  29  89  2   4  24  4  25  65  35   90  35     0 
  5 1530 4  6  23  83  3  10  40  3  13  43  31  111  28     0 
  6 1630 4  5  31  81  3  20  50  2  11  31  23   76  35     0 
  7 1420 4  4  39  79  2  32  52  2   7  27  12   84  43     0 
  8 1730 4  3  43  73  1  35  45  2   8  28   0   83  46     0 
  9 1640 4  3  47  77  1  39  49  2   8  28  49   83  50     0 
 10 1550 4  3  59  89  1  51  61  2   8  28  61   80  62     0 
 11 1710 4  3  53  83  2  49  69  1   4  14  54   93  56    10 cirrus      
 12 1640 3  3  57  87  2  51  71  1   6  16  67   99  60    40 
 13 1810 3  6  37  97  4  29  69  2   8  28  26  115  41   100 st. cirrus  
 14 1550 3  6  26  86  4  20  60  2   6  26  14  126  32   100 cirrus      
 15 1730 4  7  38 108  3  28  58  4  10  50  35  128  45     0 
 16 1630 3  7  40 110  4  31  71  3   9  39  52  137  45    60 cirrus      
 17 1610 4  5  49  99  3  43  73  2   6  26  45   75  54     0 
 18 1720 4  7  51 121  4  45  85  3   6  36  72  100  57     0 
 19 1510 4  7  57 127  4  47  87  3  10  40  65  112  63    10 cirrus      
 20 1520 3  7  62 132  5  49  99  2  13  33  48  121  69    50 cirrus      
 21 1810 3  6  45 105  4  39  79  2   6  26  31  100  50    50 cirrus      
 22 1800 4  4  29  69  4  29  69  0   0   0  13   50  33     0 
 23 1610 4  5  25  75  4  21  61  1   4  14  14   56  30     0 
 24 1630 4  5  32  82  4  29  69  1   3  13  32   71  37    40 cirrus      
 25 1940 3  6  34  94  6  34  94  0   0   0  29   91  40    70 st. cirrus  
 26 1720 4  4  25  65  2   9  29  2  16  36   0   73  29    40 ci          
 27 1610 4  7  46 116  3  17  47  4  29  69  67   96  53     0 
 28 1820 4  4  39  79  2  11  31  2  28  48  42   71  43     0 
 29 1900 5  3  30  60  1   4  14  2  26  46  46   55  33     0 
 30 1610 5  4  27  67  1   1  11  3  26  56  56   56  30     0 
 31 1600 4  8  43 123  2  10  30  6  33  93  53   86  51    15 cirrus      


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Sunspots observation summary
Year:  2012
Month: May

OBSERVER:      German Morales C.
               Astronomia Sigma Octante

Monthly Mean     R =  93.3     

                NR =  53.6    SR =  39.6    cR =  39.8

                CV =  92.2    IS =  44.7

                 Q =   3.7   Cld =  22.7%

The Sun has been observed 31 days on 31 possible.
0 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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