Monthly Sunspot Observation Report
January 2021 Sunspot classification and coordinates →
10.15
Monthly mean R
13 / 31
Observation days (42%)
31
Maximum R
18
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 | 04 | 09:45 | 0 | 0 | 0 | 3 | Ergün EGE | EE |
| Drawing | 05 | 07:50 | 0 | 0 | 0 | 3 | Burçin TANIK | BT |
| Drawing | 06 | 09:40 | 0 | 0 | 0 | 3 | Olcay PLEVNE | OP |
| Drawing | 07 | 07:10 | 0 | 0 | 0 | 3 | Süleyman FİŞEK | SF |
| Drawing | 08 | 09:30 | 0 | 0 | 0 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 11 | 09:30 | 0 | 0 | 0 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 14 | 12:35 | 1 | 2 | 12 | 3 | Talar YONTAN | TY0 |
| Drawing | 15 | 08:50 | 2 | 5 | 25 | 3 | Oğuzhan ÇAKIR | OÇ |
| Drawing | 18 | 09:25 | 1 | 2 | 12 | 3 | Ergün EGE | EE |
| Drawing | 21 | 07:30 | 2 | 11 | 31 | 3 | Süleyman FİŞEK | SF |
| Drawing | 22 | 10:20 | 2 | 7 | 27 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 28 | 09:10 | 1 | 3 | 13 | 3 | Talar YONTAN | TY0 |
| Drawing | 29 | 07:53 | 1 | 2 | 12 | 3 | Oğuzhan ÇAKIR | OÇ |
| Monthly Mean of Relative Number: 10.15 [13 observations; 42%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Ergün Ege EE | 2 | 09:35 | 09:35 [2] |
| Süleyman Fişek SF | 2 | 07:20 | 07:20 [2] |
| Başar Coşkunoğlu BC | 2 | 09:55 | 09:55 [2] |
| Talar Yontan TY0 | 2 | 10:53 | 10:53 [2] |
| Oğuzhan Çakır OÇ | 2 | 08:22 | 08:22 [2] |
| Burçin Tanık BT | 1 | 07:50 | 07:50 [1] |
| Olcay Plevne OP | 1 | 09:40 | 09:40 [1] |
| Hikmet Çakmak HÇ | 1 | 09:30 | 09:30 [1] |
| Month total | 13 – 18 | 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 (2021): 13 / 31 (42%)
Days without observation: 18
Consecutive days: 0 (longest 5)