Sunspots Observation for 2025 May

1 Observer=================================================================
ASO : : Sunspots Observation  2025  MAY
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Year:  2025    Month: May

OBSERVER:      Igor Grágeda Méndez
               Astronomia Sigma Octante

Instr.:  RFR 
    Fl:  1000mm    Aperture:  90mm    Ocular: 25mm

    Method:  Projection    Image diameter: 140mm

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

01 1435  3  2 14  34  2 14  34  0  0   0   0   66  15    10 
02 1720  2  2 11  31  2 11  31  0  0   0  20   66  12    80 
03 1700  2  2 19  39  2 19  39  0  0   0  28   66  20    60 st.cirrus
04 1540  3  4 34  74  3 28  58  1  6  16  28  104  37    40 
05 1415  3  4 39  79  3 31  61  1  8  18  50  105  42    30 st.cirrus
06 1520  3  4 36  76  3 30  60  1  6  16  49  113  39    10 
07                                                    !   0 h.i.
08 1630  3  4 35  75  2 27  47  2  8  28  37  113  38    30 st.cirrus
09 1420  2  4 25  65  2 21  41  2  4  24  34  112  28    10 st.cirrus
10                                                    ! 100 rain
11 1815  2  4  9  49  3  8  38  1  1  11  26   50  11    10 
12 1255  2  4 10  50  2  7  27  2  3  23  14   39  13    10 
13 1330  3  4 10  50  3  9  39  1  1  11  12   37  13     0 smog
14 1725  2  3  9  39  2  8  28  1  1  11   0   36  10    50 st.cirrus
15 1250  3  2 15  35  2 15  35  0  0   0   0   30  17    50 st.cirrus
16 1315  2  3  8  38  2  7  27  1  1  11   0   30   9    10 st.cirrus
17                                                    * 100 
18 1310  2  4 14  54  2  8  28  2  6  26  28   54  18    10 st.cirrus
19                                                    ! 100 st.cirrus
20 1350  2  5 14  64  2  8  28  3  6  36  39   55  17    10 st.cirrus
21 1430  2  5  9  59  2  5  25  3  4  34  11   62  12    80 st.cirrus
22 1245  2  7 14  84  2  3  23  5 11  61  13   69  17    10 st.cirrus
23 1410  3  8 15  95  3  6  36  5  9  59  48   81  17    10 st.cirrus
24 1630  2  7 19  89  2  2  22  5 17  67  22   70  20    30 st.cirrus
25 1330  2  7 16  86  2  2  22  5 14  64  55   64  17    40 st.cirrus
26 1430  2  7 23  93  3 10  40  4 13  53  22   89  27    90 st.cirrus
27 1440  3  7 27  97  3 10  40  4 17  57  26  152  31     0 
28 1330  3  7 28  98  4 18  58  3 10  40  35  102  31     0 
29 1235  3  6 32  92  3 18  48  3 14  44  58  137  35     0  
30 1405  3  7 41 111  4 27  67  3 14  44  65  142  45     0 
31 1430  3  6 43 103  4 30  70  2 13  33  67  160  47     0 

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                 Column Headings              ||Sunspots observation summary
                                              ||
UT:     UTC at middle of observation          ||
 Q:     Quality seeing                        ||   Year:  2025   Month: May
    1 Bad, 2 Poor, 3 Fair, 4 Good, 5 Excelent ||
 R:      Wolf relative number for whole disc  ||OBSERVER:  Igor Grágeda Méndez
         g: Total Groups,  s: Total Spots     ||           Astronomia Sigma Octante
NR:     Wolf Relative number North hemisphere ||     
         Ng: North Groups,  Ns: North Spots   ||Monthly Mean   R =  68.85   cR =  29.15
SR:     Wolf Relative number South hemisphere ||
         Sg: South Groups,  Ss: South Spots   ||              NR =  39.70   SR =  29.15
cR:     Wolf Relative number Central          ||
CV:     Classification Value after Malde      ||              CV =  81.63   IS =  23.63
          for whole disc                      ||
IS:     Inter Sol index for whole disc        ||             Cld =  32.67%   Q =   2.48
 M:  !  Cloudy all day                        ||
     *  Cloudy at observation hours           ||The Sun has been observed 27 days on 31
     X  Impossible to make any observation    ||possible, 4 cloudy or w/health issues 
Cld:    Percentage of cloudy sky              ||days impede any kind of observation
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