Monthly Sunspot Observation Report
January 2023 Sunspot classification and coordinates →
162.75
Monthly mean R
16 / 31
Observation days (52%)
249
Maximum R
15
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 | 09:50 | 8 | 43 | 123 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 02 | 09:15 | 6 | 28 | 88 | 3 | Ergün EGE | EE |
| Drawing | 03 | 07:30 | 5 | 82 | 132 | 3 | Talar YONTAN | TY0 |
| Drawing | 05 | 09:30 | 9 | 69 | 159 | 3 | Burçin TANIK | BT |
| Drawing | 06 | 12:10 | 12 | 55 | 175 | 3 | H.ÇAKMAK-O.P. | OP |
| Drawing | 07 | 08:00 | 7 | 87 | 157 | 3 | Korhan YELKENCİ | KY |
| Drawing | 08 | 10:00 | 8 | 114 | 194 | 3 | Talar YONTAN | TY0 |
| Drawing | 10 | 08:35 | 9 | 102 | 192 | 3 | Talar YONTAN | TY0 |
| Drawing | 15 | 10:15 | 10 | 59 | 159 | 3 | B.COŞKUNOĞLU+E.E. | BC |
| Drawing | 16 | 10:25 | 12 | 89 | 209 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 18 | 10:00 | 10 | 99 | 199 | 3 | O.PLEVNE=B.C. | BC |
| Drawing | 19 | 08:57 | 11 | 139 | 249 | 3 | Burçin TANIK | BT |
| Drawing | 20 | 09:45 | 12 | 65 | 185 | 3 | Olcay PLEVNE | OP |
| Drawing | 21 | 08:30 | 12 | 91 | 211 | 4 | Hikmet ÇAKMAK | HÇ |
| Drawing | 25 | 10:30 | 10 | 25 | 125 | 3 | Korhan YELKENCİ | KY |
| Drawing | 26 | 07:55 | 4 | 7 | 47 | 2 | Burçin TANIK | BT |
| Monthly Mean of Relative Number: 162.75 [16 observations; 52%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Hikmet Çakmak HÇ | 4 | 10:14 | 09:35 [3] |
| Talar Yontan TY0 | 3 | 08:42 | 08:42 [3] |
| Burçin Tanık BT | 3 | 08:47 | 08:47 [3] |
| Korhan Yelkenci KY | 2 | 09:15 | 09:15 [2] |
| Olcay Plevne OP | 2 | 09:53 | 09:45 [1] |
| Ergün Ege EE | 1 | 09:15 | 09:15 [1] |
| Başar Coşkunoğlu BC | 1 | 10:15 | 10:15 [1] |
| Month total | 16 – 15 | 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): 16 / 31 (52%)
Days without observation: 15
Consecutive days: 0 (longest 4)