Monthly Sunspot Observation Report
February 2020 Sunspot classification and coordinates →
1.42
Monthly mean R
24 / 29
Observation days (83%)
23
Maximum R
5
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 | 08:40 | 1 | 1 | 11 | 3 | Korhan YELKENCİ | KY |
| Drawing | 02 | 08:45 | 0 | 0 | 0 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 03 | 07:30 | 0 | 0 | 0 | 3 | T.YONTAN+O.Ç. | TY0 |
| Drawing | 04 | 09:00 | 0 | 0 | 0 | 3 | Korhan YELKENCİ | KY |
| Drawing | 07 | 08:15 | 0 | 0 | 0 | 3 | Olcay PLEVNE | OP |
| Drawing | 09 | 07:00 | 0 | 0 | 0 | 3 | K.YELKENCİ=T.Y. | TY0 |
| Drawing | 10 | 07:30 | 0 | 0 | 0 | 3 | T.YONTAN+O.Ç. | TY0 |
| Drawing | 11 | 10:00 | 0 | 0 | 0 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 12 | 10:01 | 0 | 0 | 0 | 3 | O.PLEVNE=Ö.Ö. | ÖÖ |
| Drawing | 13 | 09:35 | 0 | 0 | 0 | 3 | Burçin TANIK | BT |
| Drawing | 14 | 11:22 | 0 | 0 | 0 | 3 | B.COŞKUNOĞLU+O.Ç. | BC |
| Drawing | 16 | 07:09 | 0 | 0 | 0 | 3 | Burçin TANIK | BT |
| Drawing | 17 | 08:45 | 0 | 0 | 0 | 3 | T.YONTAN+O.Ç. | TY0 |
| Drawing | 18 | 08:14 | 0 | 0 | 0 | 3 | Korhan YELKENCİ | KY |
| Drawing | 19 | 09:25 | 0 | 0 | 0 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 21 | 13:05 | 2 | 3 | 23 | 3 | H.ÇAKMAK-O.P. | OP |
| Drawing | 22 | 09:45 | 0 | 0 | 0 | 3 | Özgecan ÖNALTAŞ | ÖÖ |
| Drawing | 23 | 10:15 | 0 | 0 | 0 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 24 | 08:05 | 0 | 0 | 0 | 3 | S.FİŞEK+O.Ç. | SF |
| Drawing | 25 | 07:05 | 0 | 0 | 0 | 3 | Korhan YELKENCİ | KY |
| Drawing | 26 | 09:00 | 0 | 0 | 0 | 4 | Ö.ÖNALTAŞ+O.Ç. | ÖÖ |
| Drawing | 27 | 06:35 | 0 | 0 | 0 | 3 | Süleyman FİŞEK | SF |
| Drawing | 28 | 09:20 | 0 | 0 | 0 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 29 | 09:20 | 0 | 0 | 0 | 3 | Süleyman FİŞEK | OP |
| Monthly Mean of Relative Number: 1.42 [24 observations; 83%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Korhan Yelkenci KY | 5 | 08:00 | 08:15 [4] |
| Başar Coşkunoğlu BC | 4 | 09:56 | 09:56 [4] |
| Talar Yontan TY0 | 3 | 07:55 | 07:55 [3] |
| Hikmet Çakmak HÇ | 3 | 10:50 | 09:42 [2] |
| Süleyman Fişek SF | 3 | 08:00 | 07:20 [2] |
| Olcay Plevne OP | 2 | 09:08 | 08:15 [1] |
| Burçin Tanık BT | 2 | 08:22 | 08:22 [2] |
| Ozgecan Önal Taş ÖÖ | 2 | 09:23 | 09:23 [2] |
| Month total | 24 – 5 | 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 (2020): 45 / 60 (75%)
Days without observation: 15
Consecutive days: 9 (longest 9)