ASO Solar Observations.

Sunspots Observation for 2017 April

Sunspots Observation  2017  APRIL

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Year:  2017
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 1740 2  2  31  51  1  10  20  1  21  31  31   52  33   100 st. cirrus  
  2                                                      X     
  3 1600 3  5  49  99  3  25  55  2  24  44  44  106  54     5 
  4                                                      * 100 rain        
  5 1610 4  2  27  47  1   9  19  1  18  28  19   75  29     0 
  6 1850 2  2  15  35  1   5  15  1  10  20  15   69  17    90 
  7 1610 3  1   6  16  0   0   0  1   6  16   0    7   7    80 cirrus      
  8 1600 3  0   0   0  0   0   0  0   0   0   0    0   0    40 
  9 1810 3  0   0   0  0   0   0  0   0   0   0    0   0    30 
 10 1640 3  1   2  12  1   2  12  0   0   0   0    7   3   100 cirrus      
 11                                                      ! 100 raIN        
 12 1700 3  1   2  12  1   2  12  0   0   0   0   10   3    15 
 13 1710 4  1   6  16  1   6  16  0   0   0  16   10   7     0 
 14 1610 4  2   7  27  2   7  27  0   0   0  27   17   9     0 
 15 1610 4  0   0   0  0   0   0  0   0   0   0    0   0     0 
 16                                                      X     
 17                                                      ! 100 
 18 1640 3  1   4  14  1   4  14  0   0   0   0   19   5    40 
 19 1720 3  1   8  18  1   8  18  0   0   0   0   25   9     0 
 20 1710 4  2  10  30  2  10  30  0   0   0   0   35  11     0 
 21 1620 4  3  10  40  2   6  26  1   4  14   0   30  12     0 
 22 1620 3  2  12  32  1   7  17  1   5  15  17   35  14   100 st. cirrus  
 23 1620 4  3  17  47  2  12  32  1   5  15  32   21  19    25 cirrus      
 24 1610 3  3  25  55  2  20  40  1   5  15  40   57  28    20 
 25 1700 5  3  15  45  2  13  33  1   2  12  45   51  18     0 
 26 1700 3  3  13  43  2   8  28  1   5  15  15   42  16    10 
 27 1730 3  2   9  29  1   5  15  1   4  14  14   35  11    70 
 28 1620 3  3   9  39  2   7  27  1   2  12  12   42  12    40 cirrus      
 29 2010 3  2   5  25  1   3  13  1   2  12  12   20   7    80 
 30 1620 3  2   4  24  1   2  12  1   2  12   0   20   6    70 


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Sunspots observation summary
Year:  2017
Month: April

OBSERVER:      German Morales C.
               Astronomia Sigma Octante

Monthly Mean     R =  30.2     

                NR =  19.2    SR =  11.0    cR =  13.6

                CV =  31.4    IS =  13.2

                 Q =   3.3   Cld =  43.4%

The Sun has been observed 25 days on 30 possible.
3 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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Report generated and Sent by: SOdb-ASO-gmc software (c)1999-v:2013