Sunspots Observation 2011 December
Year: 2011
Month: December
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 1240 4 7 44 114 5 32 82 2 12 32 44 134 51 5
2 1400 4 7 45 115 5 31 81 2 14 34 39 118 52 0
3 1420 4 8 70 150 6 43 103 2 27 47 57 145 78 0
4 1500 4 9 60 150 6 32 92 3 28 58 99 171 67 0
5 1410 4 10 61 161 6 32 92 4 29 69 104 163 71 0
6 1300 3 11 44 154 6 20 80 5 24 74 72 115 53 0
7 1240 4 7 34 104 4 13 53 3 21 51 51 95 40 30 cirrus
8 1810 3 7 23 93 4 14 54 3 9 39 28 63 29 100 st. cirrus
9 ! 100 rAin
10 * 100
11 1340 3 5 22 72 3 6 36 2 16 36 12 80 27 20
12 * 100 rain
13 ! 100 rAIn
14 * 100
15 1640 2 3 17 47 2 10 30 1 7 17 29 45 20 95
16 1400 3 4 24 64 2 8 28 2 16 36 36 67 28 20
17 1520 3 7 31 101 3 10 40 4 21 61 28 94 37 10
18 1620 3 6 35 95 2 7 27 4 28 68 27 64 41 20
19 1520 3 7 32 102 3 6 36 4 26 66 42 66 39 30
20 1250 3 5 39 89 3 15 45 2 24 44 31 78 43 50 cirrus
21 1730 3 4 61 101 3 35 65 1 26 36 36 87 65 70 cirrus
22 1320 4 4 44 84 3 23 53 1 21 31 31 110 48 10 cirrus
23 1610 2 6 42 102 3 18 48 3 24 54 47 122 48 85
24 1710 3 6 23 83 2 12 32 4 11 51 32 69 29 25
25 ! 100 RAin
26 1750 3 5 43 93 1 13 23 4 30 70 23 116 48 60
27 1520 3 4 28 68 1 7 17 3 21 51 34 88 32 80
28 1810 3 6 35 95 1 5 15 5 30 80 21 93 41 75
29 1700 3 5 22 72 1 3 13 4 19 59 16 68 27 100 st. cirrus
30 1620 3 7 34 104 3 10 40 4 24 64 40 76 40 100 st. cirrus
31 1940 2 6 23 83 1 2 12 5 21 71 13 69 29 100 st. cirrus
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Sunspots observation summary
Year: 2011
Month: December
OBSERVER: German Morales C.
Astronomia Sigma Octante
Monthly Mean R = 99.8
NR = 47.9 SR = 52.0 cR = 39.7
CV = 95.8 IS = 43.3
Q = 3.2 Cld = 54.4%
The Sun has been observed 25 days on 31 possible.
6 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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