Sunspots Observation for 2017 May
Sunspots Observation 2017 MAY
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Year: 2017
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 1640 3 1 2 12 0 0 0 1 2 12 0 10 3 5
2 1640 4 2 12 32 1 10 20 1 2 12 20 38 14 0
3 1720 4 1 11 21 1 11 21 0 0 0 21 28 12 0
4 1710 3 1 8 18 1 8 18 0 0 0 18 28 9 5
5 1620 4 2 15 35 2 15 35 0 0 0 0 26 17 0
6 1620 3 2 12 32 2 12 32 0 0 0 16 17 14 0
7 1620 4 2 5 25 2 5 25 0 0 0 13 15 7 0
8 1610 3 1 1 11 1 1 11 0 0 0 0 1 1 0
9 1920 3 0 0 0 0 0 0 0 0 0 0 0 0 50
10 * 100
11 1730 3 0 0 0 0 0 0 0 0 0 0 0 0 30
12 1710 3 3 7 37 2 5 25 1 2 12 12 3 10 40 cirrus
13 1640 3 1 2 12 0 0 0 1 2 12 0 1 3 30 cirrus
14 1640 3 0 0 0 0 0 0 0 0 0 0 0 0 100 st. cirrus
15 1610 3 0 0 0 0 0 0 0 0 0 0 0 0 5
16 1730 3 1 2 12 1 2 12 0 0 0 0 4 3 100 st. cirrus
17 1640 3 1 1 11 1 1 11 0 0 0 0 10 1 15
18 1710 3 2 5 25 1 2 12 1 3 13 0 14 7 60 cirrus
19 1910 4 2 5 25 1 2 12 1 3 13 25 17 7 15 cirrus
20 1510 3 2 6 26 1 4 14 1 2 12 26 14 8 10 cirrus
21 1630 4 3 16 46 2 11 31 1 5 15 30 45 19 0
22 1610 3 4 17 57 2 6 26 2 11 31 57 28 21 40
23 ! 100 RAIn
24 1920 3 1 12 22 1 12 22 0 0 0 22 28 13 70
25 * 100 rAin
26 1820 3 1 12 22 1 12 22 0 0 0 0 28 13 50
27 1540 3 1 10 20 1 10 20 0 0 0 0 25 11 70
28 * 100
29 1710 3 0 0 0 0 0 0 0 0 0 0 0 0 50
30 1840 3 0 0 0 0 0 0 0 0 0 0 0 0 80
31 1430 3 0 0 0 0 0 0 0 0 0 0 0 0 60
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Sunspots observation summary
Year: 2017
Month: May
OBSERVER: German Morales C.
Astronomia Sigma Octante
Monthly Mean R = 18.6
NR = 13.7 SR = 4.9 cR = 9.6
CV = 14.1 IS = 7.1
Q = 3.2 Cld = 41.5%
The Sun has been observed 27 days on 31 possible.
4 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