Monthly Sunspot Observation Report
January 2018 Sunspot classification and coordinates →
5.86
Monthly mean R
21 / 31
Observation days (68%)
24
Maximum R
10
Days without observation
D: Day · T: Time (UT) · g: Number of groups · f: Number of spots · R: Relative number (10g+f) · Q: Seeing 1–5 · O: Observer · G: Assigned observer
| Drawing | D | T (UT) | g | f | R | Q | O | G |
|---|---|---|---|---|---|---|---|---|
| Drawing | 01 | 08:55 | 0 | 0 | 0 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 02 | 08:35 | 0 | 0 | 0 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 03 | 10:49 | 0 | 0 | 0 | 3 | Özgecan ÖNALTAŞ | ÖÖ |
| Drawing | 04 | 07:45 | 1 | 4 | 14 | 3 | Korhan YELKENCİ | KY |
| Drawing | 05 | 10:40 | 1 | 1 | 11 | 3 | K.YELKENCİ+S.F. | TY0 |
| Drawing | 06 | 08:05 | 1 | 1 | 11 | 3 | Talar YONTAN | TY0 |
| Drawing | 07 | 08:30 | 0 | 0 | 0 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 08 | 09:00 | 0 | 0 | 0 | 3 | Seda KAPTAN | SK0 |
| Drawing | 11 | 07:50 | 1 | 2 | 12 | 3 | Korhan YELKENCİ | KY |
| Drawing | 14 | 09:35 | 1 | 2 | 12 | 3 | H.ÇAKMAK-Ö.Ö. | ÖÖ |
| Drawing | 15 | 09:50 | 1 | 3 | 13 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 17 | 07:55 | 1 | 14 | 24 | 3 | Özgecan ÖNALTAŞ | ÖÖ |
| Drawing | 19 | 07:45 | 1 | 3 | 13 | 3 | Talar YONTAN | TY0 |
| Drawing | 20 | 10:00 | 0 | 0 | 0 | 3 | Başar COŞKUNOĞLU | KY |
| Drawing | 24 | 08:00 | 0 | 0 | 0 | 3 | Özgecan ÖNALTAŞ | ÖÖ |
| Drawing | 25 | 10:50 | 0 | 0 | 0 | 3 | K.YELKENCİ+A.S. | KY |
| Drawing | 26 | 08:05 | 0 | 0 | 0 | 3 | K.YELKENCİ=S.F. | SF |
| Drawing | 28 | 07:55 | 0 | 0 | 0 | 3 | K.YELKENCİ=H.Ç. | HÇ |
| Drawing | 29 | 08:45 | 0 | 0 | 0 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 30 | 09:15 | 0 | 0 | 0 | 3 | Seda KAPTAN | SK0 |
| Drawing | 31 | 07:05 | 1 | 3 | 13 | 3 | K.YELKENCİ=S.F. | SF |
| Monthly Mean of Relative Number: 5.86 [21 observations; 68%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Korhan Yelkenci KY | 7 | 08:36 | 08:48 [3] |
| Hikmet Çakmak HÇ | 4 | 09:16 | 09:10 [3] |
| Başar Coşkunoğlu BC | 3 | 09:02 | 08:33 [2] |
| Ozgecan Önal Taş ÖÖ | 3 | 08:55 | 08:55 [3] |
| Talar Yontan TY0 | 2 | 07:55 | 07:55 [2] |
| Seda Kaptan SK0 | 2 | 09:08 | 09:08 [2] |
| Month total | 21 – 10 | Observing window: 07:00 – 09:00 UT | |
Colour: black = within the window, green = up to 30 min late, purple = later.
The last twelve months Development of the daily and monthly mean relative number
Observation days (2018): 21 / 31 (68%)
Days without observation: 10
Consecutive days: 4 (longest 8)