Monthly Sunspot Observation Report
December 2021 Sunspot classification and coordinates →
78.32
Monthly mean R
19 / 31
Observation days (61%)
175
Maximum R
12
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 | 10:25 | 3 | 13 | 43 | 3 | H.ÇAKMAK=Ö.Ö. | ÖÖ |
| Drawing | 02 | 07:18 | 3 | 14 | 44 | 3 | Burçin TANIK | BT |
| Drawing | 03 | 08:10 | 3 | 8 | 38 | 3 | Olcay PLEVNE | OP |
| Drawing | 05 | 10:10 | 4 | 6 | 46 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 06 | 07:20 | 1 | 3 | 13 | 3 | Ergün EGE | EE |
| Drawing | 07 | 07:20 | 1 | 3 | 13 | 3 | Korhan YELKENCİ | KY |
| Drawing | 09 | 07:10 | 0 | 0 | 0 | 3 | Oğuzhan ÇAKIR | SF |
| Drawing | 10 | 09:38 | 0 | 0 | 0 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 11 | 09:40 | 0 | 0 | 0 | 3 | Talar YONTAN | TY0 |
| Drawing | 14 | 11:45 | 3 | 17 | 47 | 3 | Oğuzhan ÇAKIR | KY |
| Drawing | 19 | 07:10 | 9 | 31 | 121 | 3 | Ergün EGE | EE |
| Drawing | 21 | 09:27 | 10 | 60 | 160 | 3 | Talar YONTAN | TY0 |
| Drawing | 22 | 07:30 | 9 | 64 | 154 | 2 | Süleyman FİŞEK | OÇ |
| Drawing | 23 | 10:15 | 9 | 59 | 149 | 3 | Burçin TANIK | BT |
| Drawing | 24 | 07:40 | 8 | 40 | 120 | 3 | Ergün EGE | BC |
| Drawing | 25 | 09:15 | 10 | 75 | 175 | 3 | Oğuzhan ÇAKIR | SF |
| Drawing | 27 | 08:40 | 8 | 56 | 136 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 28 | 11:10 | 6 | 78 | 138 | 3 | Talar YONTAN | TY0 |
| Drawing | 30 | 09:50 | 5 | 41 | 91 | 3 | Süleyman FİŞEK | SF |
| Monthly Mean of Relative Number: 78.32 [19 observations; 61%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Hikmet Çakmak HÇ | 3 | 09:45 | 09:25 [2] |
| Ergün Ege EE | 3 | 07:23 | 07:15 [2] |
| Oğuzhan Çakır OÇ | 3 | 09:23 | --:-- |
| Talar Yontan TY0 | 3 | 10:06 | 10:06 [3] |
| Burçin Tanık BT | 2 | 08:47 | 08:47 [2] |
| Süleyman Fişek SF | 2 | 08:40 | 09:50 [1] |
| Olcay Plevne OP | 1 | 08:10 | 08:10 [1] |
| Korhan Yelkenci KY | 1 | 07:20 | 07:20 [1] |
| Başar Coşkunoğlu BC | 1 | 09:38 | 09:38 [1] |
| Month total | 19 – 12 | 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): 245 / 365 (67%)
Days without observation: 120
Consecutive days: 1 (longest 64)