Sunspots Observation for 2017 February
Sunspots Observation 2017 FEBRUARY
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Year: 2017
Month: February
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 1400 3 3 12 42 3 12 42 0 0 0 30 27 15 10
2 1530 3 3 12 42 3 12 42 0 0 0 0 34 15 100 cirrus
3 1420 3 2 6 26 2 6 26 0 0 0 0 17 8 0
4 1440 3 1 2 12 1 2 12 0 0 0 0 4 3 0
5 1550 4 2 2 22 2 2 22 0 0 0 0 5 2 0
6 ! 100
7 1520 2 0 0 0 0 0 0 0 0 0 0 0 0 100 st. cirrus
8 1550 3 0 0 0 0 0 0 0 0 0 0 0 0 100 cirrus
9 1700 3 1 4 14 1 4 14 0 0 0 14 19 5 80
10 1550 4 1 6 16 1 6 16 0 0 0 16 28 7 0
11 1930 2 1 7 17 1 7 17 0 0 0 17 34 8 100 st. cirrus
12 ! 100
13 1710 3 1 4 14 1 4 14 0 0 0 0 19 5 70 cirrus
14 1610 3 1 2 12 1 2 12 0 0 0 0 10 3 30
15 1640 3 0 0 0 0 0 0 0 0 0 0 0 0 60
16 ! 100 RAIn
17 * 100
18 1720 3 0 0 0 0 0 0 0 0 0 0 0 0 30
19 1820 3 1 2 12 0 0 0 1 2 12 0 4 3 75
20 1740 3 2 4 24 2 4 24 0 0 0 0 17 6 85
21 1645 3 2 9 29 2 9 29 0 0 0 0 14 11 10
22 1840 3 1 11 21 1 11 21 0 0 0 0 28 12 70
23 1720 3 1 7 17 1 7 17 0 0 0 0 28 8 50
24 1630 3 2 5 25 1 3 13 1 2 12 25 20 7 65
25 1740 3 2 5 25 1 4 14 1 1 11 14 14 6 70
26 ! 100 raIN
27 1600 3 3 16 46 3 16 46 0 0 0 17 51 19 80
28 2030 3 3 15 45 3 15 45 0 0 0 15 43 17 20
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Sunspots observation summary
Year: 2017
Month: February
OBSERVER: German Morales C.
Astronomia Sigma Octante
Monthly Mean R = 20.0
NR = 18.5 SR = 1.5 cR = 6.4
CV = 18.1 IS = 7.0
Q = 3.0 Cld = 60.9%
The Sun has been observed 23 days on 28 possible.
5 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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Report generated and Sent by: SOdb-ASO-gmc software (c)1999-v:2013
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