Sunspots Observation 2011 March
Year: 2011
Month: March
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 1800 3 3 29 59 2 23 43 1 6 16 16 51 32 15
2 1530 3 4 29 69 3 24 54 1 5 15 15 76 33 50
3 1640 3 3 34 64 3 34 64 0 0 0 51 57 37 10
4 2140 3 4 47 87 3 39 69 1 8 18 0 75 51 90
5 1740 3 3 49 79 2 38 58 1 11 21 0 95 52 50
6 1440 3 5 62 112 3 47 77 2 15 35 0 119 67 20
7 1450 3 6 77 137 4 60 100 2 17 37 44 158 82 60
8 ! 100 RAIn
9 1430 3 3 57 87 3 57 87 0 0 0 42 88 60 50
10 1940 3 3 50 80 3 50 80 0 0 0 80 73 53 85
11 1730 3 3 49 79 3 49 79 0 0 0 41 72 52 25
12 1750 3 2 45 65 2 45 65 0 0 0 0 63 47 60
13 1450 4 5 56 106 5 56 106 0 0 0 17 110 61 5
14 1700 3 3 36 66 3 36 66 0 0 0 0 92 39 100 cirrus
15 1800 3 2 15 35 2 15 35 0 0 0 12 32 17 40
16 1740 3 2 13 33 1 7 17 1 6 16 0 62 15 15
17 1520 3 2 13 33 1 3 13 1 10 20 0 26 15 0
18 1740 3 2 13 33 1 9 19 1 4 14 33 26 15 85
19 1910 3 2 14 34 1 12 22 1 2 12 34 32 16 75
20 1740 3 1 14 24 1 14 24 0 0 0 0 19 15 30
21 ! 100 RAIn
22 1740 3 2 17 37 1 5 15 1 12 22 0 63 19 10
23 1430 3 2 13 33 1 4 14 1 9 19 0 51 15 15
24 1500 3 2 15 35 1 4 14 1 11 21 0 51 17 40
25 1710 4 5 43 93 2 10 30 3 33 63 34 42 48 5
26 1550 3 5 43 93 2 11 31 3 32 62 29 65 48 80
27 1700 3 6 44 104 3 14 44 3 30 60 42 89 50 100 St. cirrus
28 1730 3 6 50 110 3 23 53 3 27 57 59 89 56 70
29 1900 3 5 30 80 2 15 35 3 15 45 33 61 35 80
30 1700 3 4 34 74 2 14 34 2 20 40 34 61 38 15
31 1520 3 3 27 57 2 18 38 1 9 19 26 62 30 15 Cirrus
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Sunspots observation summary
Year: 2011
Month: March
OBSERVER: German Morales C.
Astronomia Sigma Octante
Monthly Mean R = 68.9
NR = 47.8 SR = 21.1 cR = 22.1
CV = 67.6 IS = 38.4
Q = 3.1 Cld = 48.2%
The Sun has been observed 29 days on 31 possible.
2 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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