Sunspots Observation for 2025 December

1 Observer=================================================================
ASO : : Sunspots Observation  2025  DEC
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Year:  2025    Month: December

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                                                    * 100 rain
02                                                    * 100 
03 2000  3  8 68 148  3  5  35  5 63 113  97  169  73    70 st.cirrus
04                                                    * 100 
05 1445  3  7 47 117  3 10  40  4 37  77  78  163  53    80 st.cirrus
06 1510  2  7 46 116  3 13  43  4 33  73  92  169  52    80 st.cirrus
07 1730  2  7 55 125  3 12  42  4 43  83  85  167  60    60 
08 1925  2  9 51 141  5 20  70  4 31  71  77  174  57    80 st.cirrus
09                                                    * 100 
10 1300  3  9 39 129  3 10  40  6 29  89  29  133  44    60 
11                                                    * 100 
12                                                    * 100 
13 1215  2  5 16  66  2  5  25  3 11  41  30   66  19    40 st.cirrus
14 1515  2  6 15  75  2  2  22  4 13  53  17   54  17    40 st.cirrus
15 1450  3  5 15  65  2  7  27  3  8  38  27   52  18    40 st.cirrus
16                                                    * 100 rain
17 2010  2  5 17  67  3 11  41  2  6  26  41   46  20    30 st.cirrus
18 2145  2  7  8  78  5  6  56  2  2  22  34   29   9    40 st.cirrus
19 1510  2  3  4  34  3  4  34  0  0   0   0   19   5    50 st.cirrus
20 1330  3  5 10  60  4  4  44  1  6  16   0   21  11    70 
21                                                    * 100 
22                                                    * 100 
23 1815  2  7 26  96  4 19  59  3  7  37  37  109  30    70 st.cirrus
24                                                    * 100 
25                                                    * 100 
26 1400  3  8 26 106  3 11  41  5 15  65  44   88  29    95 
27 1525  2  7 36 106  4 15  55  3 21  51  35  143  40    30 st.cirrus
28                                                    * 100 
29                                                    * 100 
30 1500  2  8 33 113  3 14  44  5 19  69  36  124  37    80 st.cirrus
31 1245  2  8 39 119  3 17  47  5 22  72  50  120  44    80 st.cirrus

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                 Column Headings              ||Sunspots observation summary
                                              ||
UT:     UTC at middle of observation          ||
 Q:     Quality seeing                        ||   Year:  2025   Month: December
    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 =  97.83   cR =  44.94
SR:     Wolf Relative number South hemisphere ||
         Sg: South Groups,  Ss: South Spots   ||              NR =  42.50   SR =  55.33
cR:     Wolf Relative number Central          ||
CV:     Classification Value after Malde      ||              CV = 102.56   IS =  34.33
          for whole disc                      ||
IS:     Inter Sol index for whole disc        ||             Cld =  77.26%   Q =   2.33
 M:  !  Cloudy all day                        ||
     *  Cloudy at observation hours           ||The Sun has been observed 18 days on 31
     X  Impossible to make any observation    ||possible, 13 cloudy or w/health issues 
Cld:    Percentage of cloudy sky              ||days impede any kind of observation
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