Sunspots Observation for 2026 March

1 Observer=================================================================
ASO : Sunspots Observation  2026  APR
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Year:  2026    Month: April

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 1330  3 10 40 140  7 26  96  3 14  44  91  147  46     0 
02 1330  3  9 30 120  7 19  89  2 11  31  76  134  35    10 
03 1315  3  8 35 115  5 22  72  3 13  43  70   87  39    20 
04 1420  3  7 30 100  5 19  69  2 11  31  56   78  32    40 st.cirrus
05 2125  3  5 28  78  4 21  61  1  7  17  39   73  30    50 st.cirrus
06 1340  3  6 25  85  5 21  71  1  4  14  15   84  28    10 
07 1310  3  5 16  66  4 13  53  1  3  13  11   64  18    20 st.cirrus
08 1455  2  6 13  73  4 11  51  2  2  22  11   44  15    40 st.cirrus
09                                                    X   0 h.i.
10                                                    X   0 h.i.
11                                                    X   0 h.i.
12                                                    X   0 h.i.
13                                                    X   0 h.i.
14                                                    X   0 h.i.
15 1235  3  3 15  45  2 14  34  1  1  11  11   43  17    10 st.cirrus
16 2015  2  3 15  45  2 14  34  1  1  11   0   67  16    95 st.cirrus
17 1435  2  3 18  48  2 17  37  1  1  11  26   67  19    10 
18 1350  3  2 15  35  1 14  24  1  1  11  24   57  16    10 
19 1415  3  2 17  37  1 16  26  1  1  11  26   57  18    40 st.cirrus
20                                                    * 100 
21 1320  3  4 14  54  3 13  43  1  1  11  12   87  17    30 
22                                                    * 100 
23 1520  2  4 21  61  3 20  50  1  1  11   0   88  24    60 st.cirrus
24 1315  2  5 35  85  3 26  56  2  9  29  38  113  39    20 st.cirrus
25 1330  2  6 33  93  3 21  51  3 12  42  50  125  37    70 st.cirrus
26 1310  3  7 46 116  5 43  93  2  3  23  56  135  50     0 
27                                                    * 100 
28                                                    * 100 
29 1340  2  5 59 109  3 47  77  2 12  32  66  163  64    60 st.cirrus
30 1455  2  8 36 116  6 27  87  2  9  29  38  113  41    70 st.cirrus

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                 Column Headings              ||Sunspots observation summary
                                              ||
UT:     UTC at middle of observation          ||
 Q:     Quality seeing                        ||   Year:  2026   Month: April 
    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 =  81.05   cR =  35.80
SR:     Wolf Relative number South hemisphere ||
         Sg: South Groups,  Ss: South Spots   ||              NR =  58.70   SR =  22.35
cR:     Wolf Relative number Central          ||
CV:     Classification Value after Malde      ||              CV =  91.30   IS =  30.05
          for whole disc                      ||
IS:     Inter Sol index for whole disc        ||             Cld =  44.38%   Q =   2.60
 M:  !  Cloudy all day                        ||
     *  Cloudy at observation hours           ||The Sun has been observed 20 days on 30
     X  Impossible to make any observation    ||possible, 10 cloudy or w/health issues 
Cld:    Percentage of cloudy sky              ||days impede any kind of observation
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