Monthly Sunspot Observation Report
February 2023 Sunspot classification and coordinates →
120.62
Monthly mean R
21 / 28
Observation days (75%)
213
Maximum R
7
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 | 10:00 | 8 | 23 | 103 | 3 | T.YONTAN=K.Y. | KY |
| Drawing | 02 | 08:53 | 1 | 5 | 15 | 2 | Burçin TANIK | BT |
| Drawing | 03 | 13:25 | 5 | 26 | 76 | 3 | H.ÇAKMAK-B.C. | BC |
| Drawing | 07 | 10:55 | 6 | 20 | 80 | 2 | H.ÇAKMAK-T.Y. | TY0 |
| Drawing | 08 | 10:55 | 7 | 57 | 127 | 3 | Korhan YELKENCİ | KY |
| Drawing | 10 | 08:50 | 11 | 103 | 213 | 3 | Olcay PLEVNE | OP |
| Drawing | 11 | 09:16 | 7 | 61 | 131 | 2 | Başar COŞKUNOĞLU | BC |
| Drawing | 12 | 08:05 | 11 | 79 | 189 | 3 | B.TANIK=O.P. | OP |
| Drawing | 13 | 11:00 | 13 | 48 | 178 | 3 | Ergün EGE | EE |
| Drawing | 14 | 08:20 | 14 | 72 | 212 | 3 | Talar YONTAN | TY0 |
| Drawing | 16 | 07:50 | 9 | 35 | 125 | 3 | Burçin TANIK | BT |
| Drawing | 17 | 07:30 | 5 | 34 | 84 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 18 | 10:20 | 7 | 21 | 91 | 3 | Ergün EGE | EE |
| Drawing | 19 | 08:00 | 7 | 33 | 103 | 3 | O.PLEVNE=B.T. | BT |
| Drawing | 20 | 09:50 | 8 | 23 | 103 | 3 | Ergün EGE | EE |
| Drawing | 21 | 12:35 | 6 | 45 | 105 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 22 | 08:45 | 4 | 28 | 68 | 3 | Olcay PLEVNE | OP |
| Drawing | 23 | 08:05 | 4 | 76 | 116 | 3 | Burçin TANIK | BT |
| Drawing | 24 | 09:23 | 5 | 75 | 125 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 25 | 09:40 | 7 | 88 | 158 | 4 | Hikmet ÇAKMAK | HÇ |
| Drawing | 26 | 10:35 | 5 | 81 | 131 | 3 | Korhan YELKENCİ | KY |
| Monthly Mean of Relative Number: 120.62 [21 observations; 75%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Burçin Tanık BT | 4 | 08:13 | 08:16 [3] |
| Hikmet Çakmak HÇ | 4 | 11:39 | 11:08 [2] |
| Olcay Plevne OP | 3 | 08:32 | 08:48 [2] |
| Başar Coşkunoğlu BC | 3 | 08:43 | 08:43 [3] |
| Ergün Ege EE | 3 | 10:23 | 10:23 [3] |
| Talar Yontan TY0 | 2 | 09:10 | 08:20 [1] |
| Korhan Yelkenci KY | 2 | 10:45 | 10:45 [2] |
| Month total | 21 – 7 | 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): 37 / 59 (63%)
Days without observation: 22
Consecutive days: 0 (longest 11)