Monthly Sunspot Observation Report
December 2023 Sunspot classification and coordinates →
114.11
Monthly mean R
18 / 31
Observation days (58%)
162
Maximum R
13
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 | 02 | 09:35 | 7 | 24 | 94 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 03 | 09:35 | 10 | 31 | 131 | 3 | Süleyman FİŞEK | SF |
| Drawing | 10 | 12:20 | 10 | 38 | 138 | 3 | Olcay PLEVNE | OP |
| Drawing | 11 | 08:35 | 4 | 22 | 62 | 2 | Ergün EGE | EE |
| Drawing | 13 | 10:00 | 6 | 55 | 115 | 3 | Olcay PLEVNE | OP |
| Drawing | 14 | 07:35 | 6 | 56 | 116 | 3 | Burçin TANIK | BT |
| Drawing | 18 | 08:45 | 9 | 27 | 117 | 3 | Ergün EGE | EE |
| Drawing | 19 | 11:45 | 8 | 64 | 144 | 3 | Süleyman FİŞEK | SF |
| Drawing | 20 | 09:30 | 9 | 72 | 162 | 3 | Olcay PLEVNE | OP |
| Drawing | 22 | 08:50 | 6 | 32 | 92 | 2 | Hikmet ÇAKMAK | HÇ |
| Drawing | 23 | 07:10 | 8 | 60 | 140 | 3 | Süleyman FİŞEK | SF |
| Drawing | 24 | 07:30 | 7 | 37 | 107 | 2 | Burçin TANIK | BT |
| Drawing | 25 | 07:40 | 9 | 22 | 112 | 3 | Ergün EGE | EE |
| Drawing | 26 | 07:40 | 9 | 69 | 159 | 3 | Korhan YELKENCİ | KY |
| Drawing | 27 | 08:30 | 7 | 34 | 104 | 3 | Süleyman FİŞEK | SF |
| Drawing | 28 | 09:30 | 7 | 39 | 109 | 3 | Burçin TANIK | BT |
| Drawing | 29 | 09:05 | 6 | 24 | 84 | 3 | E.EGE=B.C. | BC |
| Drawing | 30 | 07:20 | 5 | 18 | 68 | 3 | Ergün EGE | EE |
| Monthly Mean of Relative Number: 114.11 [18 observations; 58%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Ergün Ege EE | 5 | 08:17 | 08:05 [4] |
| Süleyman Fişek SF | 4 | 09:15 | 09:15 [4] |
| Olcay Plevne OP | 3 | 10:37 | 10:37 [3] |
| Burçin Tanık BT | 3 | 08:12 | 08:12 [3] |
| Hikmet Çakmak HÇ | 2 | 09:13 | 09:13 [2] |
| Korhan Yelkenci KY | 1 | 07:40 | 07:40 [1] |
| Month total | 18 – 13 | 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 (2023): 266 / 365 (73%)
Days without observation: 99
Consecutive days: 9 (longest 30)