Sunspots Observation 2011 May
Year: 2011
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 1250 3 5 12 62 4 8 48 1 4 14 14 26 16 30 cirrus
2 1620 4 5 22 72 4 12 52 1 10 20 0 44 25 10 cirrus
3 1720 3 4 21 61 4 21 61 0 0 0 29 25 25 0
4 1640 3 4 19 59 4 19 59 0 0 0 33 37 23 0
5 1610 3 3 17 47 3 17 47 0 0 0 34 36 20 5
6 1830 3 2 21 41 2 21 41 0 0 0 29 32 23 0
7 1630 3 2 12 32 2 12 32 0 0 0 19 35 14 75
8 1610 4 5 28 78 5 28 78 0 0 0 0 48 33 0
9 1640 4 4 31 71 3 28 58 1 3 13 34 69 35 0
10 1730 3 3 24 54 3 24 54 0 0 0 39 61 27 70
11 * 100 raIN
12 1640 3 3 7 37 3 7 37 0 0 0 25 21 10 0
13 1630 4 3 6 36 3 6 36 0 0 0 24 21 8 0
14 1920 3 3 14 44 2 5 25 1 9 19 19 39 16 0
15 1730 4 3 20 50 1 8 18 2 12 32 20 48 23 0
16 1700 3 4 20 60 1 4 14 3 16 46 33 58 24 80 cirrus
17 1740 3 3 18 48 1 2 12 2 16 36 24 36 21 0
18 1640 4 2 8 28 0 0 0 2 8 28 0 29 10 0
19 1530 4 3 7 37 0 0 0 3 7 37 0 21 10 0
20 1720 4 3 6 36 0 0 0 3 6 36 12 27 9 0
21 1610 4 3 6 36 0 0 0 3 6 36 12 21 9 0
22 1700 3 2 3 23 0 0 0 2 3 23 23 11 4 100 cirrus
23 1700 3 1 2 12 0 0 0 1 2 12 12 10 3 40
24 1830 3 1 2 12 0 0 0 1 2 12 0 10 3 70 cirrus
25 1800 3 1 3 13 0 0 0 1 3 13 0 10 4 75 cirrus
26 1730 3 2 15 35 0 0 0 2 15 35 23 32 17 100 cirrus
27 1650 4 5 26 76 2 12 32 3 14 44 36 68 31 30 cirrus
28 1700 4 4 34 74 2 19 39 2 15 35 27 82 38 0
29 1620 4 6 42 102 4 22 62 2 20 40 0 106 48 0
30 1630 4 7 57 127 5 26 76 2 31 51 12 134 64 40 cirrus
31 1540 3 6 48 108 4 19 59 2 29 49 29 112 54 100 cirrus
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Sunspots observation summary
Year: 2011
Month: May
OBSERVER: German Morales C.
Astronomia Sigma Octante
Monthly Mean R = 52.4
NR = 31.3 SR = 21.0 cR = 18.7
CV = 43.6 IS = 21.6
Q = 3.4 Cld = 29.8%
The Sun has been observed 30 days on 31 possible.
1 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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