ASO Solar Observations.

Sunspots Observation for 2017 May

Sunspots Observation  2017  MAY

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Year:  2017
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 1640 3  1   2  12  0   0   0  1   2  12   0   10   3     5 
  2 1640 4  2  12  32  1  10  20  1   2  12  20   38  14     0 
  3 1720 4  1  11  21  1  11  21  0   0   0  21   28  12     0 
  4 1710 3  1   8  18  1   8  18  0   0   0  18   28   9     5 
  5 1620 4  2  15  35  2  15  35  0   0   0   0   26  17     0 
  6 1620 3  2  12  32  2  12  32  0   0   0  16   17  14     0 
  7 1620 4  2   5  25  2   5  25  0   0   0  13   15   7     0 
  8 1610 3  1   1  11  1   1  11  0   0   0   0    1   1     0 
  9 1920 3  0   0   0  0   0   0  0   0   0   0    0   0    50 
 10                                                      * 100 
 11 1730 3  0   0   0  0   0   0  0   0   0   0    0   0    30 
 12 1710 3  3   7  37  2   5  25  1   2  12  12    3  10    40 cirrus      
 13 1640 3  1   2  12  0   0   0  1   2  12   0    1   3    30 cirrus      
 14 1640 3  0   0   0  0   0   0  0   0   0   0    0   0   100 st. cirrus  
 15 1610 3  0   0   0  0   0   0  0   0   0   0    0   0     5 
 16 1730 3  1   2  12  1   2  12  0   0   0   0    4   3   100 st. cirrus  
 17 1640 3  1   1  11  1   1  11  0   0   0   0   10   1    15 
 18 1710 3  2   5  25  1   2  12  1   3  13   0   14   7    60 cirrus      
 19 1910 4  2   5  25  1   2  12  1   3  13  25   17   7    15 cirrus      
 20 1510 3  2   6  26  1   4  14  1   2  12  26   14   8    10 cirrus      
 21 1630 4  3  16  46  2  11  31  1   5  15  30   45  19     0 
 22 1610 3  4  17  57  2   6  26  2  11  31  57   28  21    40 
 23                                                      ! 100 RAIn        
 24 1920 3  1  12  22  1  12  22  0   0   0  22   28  13    70 
 25                                                      * 100 rAin        
 26 1820 3  1  12  22  1  12  22  0   0   0   0   28  13    50 
 27 1540 3  1  10  20  1  10  20  0   0   0   0   25  11    70 
 28                                                      * 100 
 29 1710 3  0   0   0  0   0   0  0   0   0   0    0   0    50 
 30 1840 3  0   0   0  0   0   0  0   0   0   0    0   0    80 
 31 1430 3  0   0   0  0   0   0  0   0   0   0    0   0    60 


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Sunspots observation summary
Year:  2017
Month: May

OBSERVER:      German Morales C.
               Astronomia Sigma Octante

Monthly Mean     R =  18.6     

                NR =  13.7    SR =   4.9    cR =   9.6

                CV =  14.1    IS =   7.1

                 Q =   3.2   Cld =  41.5%

The Sun has been observed 27 days on 31 possible.
4 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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