Monthly Sunspot Observation Report
December 2020 Sunspot classification and coordinates →
24.86
Monthly mean R
14 / 31
Observation days (45%)
48
Maximum R
17
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 | 03 | 09:25 | 3 | 18 | 48 | 3 | Süleyman FİŞEK | SF |
| Drawing | 04 | 08:56 | 3 | 12 | 42 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 07 | 09:00 | 2 | 2 | 22 | 3 | Ergün EGE | EE |
| Drawing | 08 | 07:40 | 1 | 1 | 11 | 3 | Süleyman FİŞEK | KY |
| Drawing | 09 | 10:00 | 1 | 1 | 11 | 3 | Olcay PLEVNE | OP |
| Drawing | 10 | 07:15 | 1 | 1 | 11 | 3 | Süleyman FİŞEK | SF |
| Drawing | 11 | 10:45 | 1 | 3 | 13 | 3 | Oğuzhan ÇAKIR | OÇ |
| Drawing | 22 | 12:10 | 1 | 1 | 11 | 3 | Süleyman FİŞEK | KY |
| Drawing | 24 | 12:45 | 2 | 4 | 24 | 3 | Süleyman FİŞEK | SF |
| Drawing | 25 | 10:20 | 2 | 10 | 30 | 3 | Talar YONTAN | TY0 |
| Drawing | 28 | 10:20 | 2 | 11 | 31 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 29 | 08:45 | 2 | 13 | 33 | 3 | Süleyman FİŞEK | BT |
| Drawing | 30 | 08:45 | 2 | 9 | 29 | 3 | Olcay PLEVNE | OP |
| Drawing | 31 | 09:25 | 2 | 12 | 32 | 3 | Talar YONTAN | TY0 |
| Monthly Mean of Relative Number: 24.86 [14 observations; 45%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Süleyman Fişek SF | 6 | 09:40 | 09:48 [3] |
| Olcay Plevne OP | 2 | 09:23 | 09:23 [2] |
| Talar Yontan TY0 | 2 | 09:53 | 09:53 [2] |
| Başar Coşkunoğlu BC | 1 | 08:56 | 08:56 [1] |
| Ergün Ege EE | 1 | 09:00 | 09:00 [1] |
| Oğuzhan Çakır OÇ | 1 | 10:45 | 10:45 [1] |
| Hikmet Çakmak HÇ | 1 | 10:20 | 10:20 [1] |
| Month total | 14 – 17 | 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): 248 / 366 (68%)
Days without observation: 118
Consecutive days: 4 (longest 83)