Sunspots Observation for 2025 August

1 Observer=================================================================
ASO : : Sunspots Observation  2025  SEP
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Year:  2025    Month: September

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 1520  3 11 38 148  7 16  86  4 22  62  30  133  43     0 
02 1345  2 10 48 148  6 17  77  4 31  71  39  130  53    10 st.cirrus
03 1555  2 11 47 157  6 25  85  5 22  72  37  167  52    80 st.cirrus
04                                                    * 100 rain
05                                                    * 100 rain
06 1515  2  7 25  95  4 18  58  3  7  37  47   98  28    80 st.cirrus
07 1340  3  6 25  85  4 17  57  2  8  28  50   75  27    70 
08 1300  2  6 22  82  4 12  52  2 10  30  42   85  26    10 
09 1400  2  6 24  84  4 12  52  2 12  32  60   65  27    70 
10 1620  3  5 24  74  3 10  40  2 14  34  34   64  27    40 
11 1750  2  5 17  67  3  8  38  2  9  29   0   69  20    70 
12 1435  2 10 15 115  8  7  87  2  8  28  11   61  17    10 st.cirrus
13 1415  2  3 16  46  1  8  18  2  8  28   0   51  18    10 st.cirrus
14 1310  3  4  9  49  2  7  27  2  2  22   0   50  11    10 st.cirrus
15 1245  2  6 15  75  4 12  52  2  3  23  29   74  19     0 
16 1500  3  8 24 104  4 13  53  4 11  51  43   66  30    70 st.cirrus
17 2105  3  7 48 118  3 19  49  4 29  69  80   96  54    60 
18 1355  3  7 42 112  4 17  57  3 25  55  75   92  47    20 
19                                                    X   0 On Trip
20                                                    X   0 On Trip
21                                                    X   0 On Trip
22                                                    X   0 On Trip
23 1230  2 10 50 150  3  3  33  7 47 117  11  116  55     0 
24 2000  3 10 44 144  3  3  33  7 41 111  45  137  49    30 
25 1125  3 10 39 139  3  3  33  7 36 106  71  120  44    40 st.cirrus
26 1550  2  9 33 123  3  3  33  6 30  90  64  164  38    30 
27 1650  2 12 37 157  5  8  58  7 29  99  45   99  41    40 st.cirrus
28 1420  2  8 43 123  5 20  70  3 23  53  19  200  48    80 st.cirrus
29 1350  3 10 53 153  7 36 106  3 17  47  80  187  60    50 st.cirrus
30 1550  3  9 65 155  6 44 104  3 21  51  93  196  71    60 st.cirrus

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                 Column Headings              ||Sunspots observation summary
                                              ||
UT:     UTC at middle of observation          ||
 Q:     Quality seeing                        ||   Year:  2025   Month: September
    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 = 112.63   cR =  38.65
SR:     Wolf Relative number South hemisphere ||
         Sg: South Groups,  Ss: South Spots   ||              NR =  56.58   SR =  56.04
cR:     Wolf Relative number Central          ||
CV:     Classification Value after Malde      ||              CV = 108.13   IS =  37.71
          for whole disc                      ||
IS:     Inter Sol index for whole disc        ||             Cld =  43.85%   Q =   2.46
 M:  !  Cloudy all day                        ||
     *  Cloudy at observation hours           ||The Sun has been observed 24 days on 30
     X  Impossible to make any observation    ||possible, 6 cloudy or w/health issues 
Cld:    Percentage of cloudy sky              ||days impede any kind of observation
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