Sunspots Observation 2012 February

Year:  2012
Month: February

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 1710 2  4  23  63  2  19  39  2   4  24  39   37  27   100 st. cirrus  
  2                                                      * 100 Rain        
  3 1830 3  2   7  27  2   7  27  0   0   0   0   29   9    50 
  4                                                      ! 100 
  5 1340 3  2   6  26  2   6  26  0   0   0   0   17   8    80 
  6 1600 4  3  17  47  3  17  47  0   0   0   0   36  20    10 
  7 1240 4  2   9  29  2   9  29  0   0   0   0   29  11     0 
  8 1400 4  3  10  40  2   8  28  1   2  12   0   21  13     0 
  9 1850 3  1  15  25  0   0   0  1  15  25  25   22  16    50 st. cirrus  
 10 2000 2  1  16  26  0   0   0  1  16  26  26   22  17    90 
 11 1840 3  2  27  47  1   7  17  1  20  30  30   42  29    85 
 12 1750 3  4  24  64  2   6  26  2  18  38  38   49  28    40 
 13                                                      ! 100 RAIN        
 14 1910 3  4  17  57  2   7  27  2  10  30   0   58  21    85 
 15                                                      ! 100 RAiN        
 16                                                      ! 100 RaIn        
 17                                                      * 100 rAin        
 18 1620 3  5  16  66  4  12  52  1   4  14  27   44  21    65 
 19 1340 3  5  21  71  3  16  46  2   5  25  48   29  25    30 
 20 1640 2  2  17  37  2  17  37  0   0   0  25   35  19    70 
 21 1540 3  3  18  48  3  18  48  0   0   0  24   42  21    90 
 22 1420 3  2  16  36  2  16  36  0   0   0   0   17  18    20 
 23 1750 3  3  15  45  3  15  45  0   0   0   0   36  18   100 st. cirrus  
 24 1720 3  3   9  39  3   9  39  0   0   0   0   27  12    60 
 25 1610 3  4  11  51  3  10  40  1   1  11  11   31  14    80 cirrus      
 26 1540 2  3   7  37  3   7  37  0   0   0   0   30  10   100 st.cirrus   
 27                                                      ! 100 Rain        
 28 1240 3  2   6  26  2   6  26  0   0   0  26   14   8     0 
 29 1420 3  2   3  23  2   3  23  0   0   0  12   14   4    80 cirrus      


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Sunspots observation summary
Year:  2012
Month: February

OBSERVER:      German Morales C.
               Astronomia Sigma Octante

Monthly Mean     R =  42.3     

                NR =  31.6    SR =  10.7    cR =  15.0

                CV =  31.0    IS =  16.8

                 Q =   3.0   Cld =  68.4%

The Sun has been observed 22 days on 29 possible.
7 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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