Monthly Sunspot Observation Report
May 2023 Sunspot classification and coordinates →
126.00
Monthly mean R
21 / 31
Observation days (68%)
172
Maximum R
10
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 | 07:50 | 5 | 27 | 77 | 3 | Ergün EGE | EE |
| Drawing | 02 | 07:45 | 9 | 55 | 145 | 3 | Korhan YELKENCİ | KY |
| Drawing | 03 | 11:15 | 7 | 38 | 108 | 3 | Olcay PLEVNE | OP |
| Drawing | 04 | 08:08 | 7 | 50 | 120 | 3 | Burçin TANIK | BT |
| Drawing | 07 | 10:25 | 7 | 42 | 112 | 3 | Ergün EGE | EE |
| Drawing | 08 | 08:10 | 6 | 49 | 109 | 3 | Ergün EGE | EE |
| Drawing | 09 | 11:20 | 10 | 72 | 172 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 13 | 07:30 | 9 | 43 | 133 | 3 | Olcay PLEVNE | OP |
| Drawing | 14 | 06:00 | 9 | 70 | 160 | 3 | Korhan YELKENCİ | KY |
| Drawing | 15 | 08:10 | 6 | 36 | 96 | 3 | Ergün EGE | EE |
| Drawing | 16 | 08:50 | 7 | 61 | 131 | 3 | Korhan YELKENCİ | KY |
| Drawing | 17 | 12:10 | 7 | 27 | 97 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 21 | 10:35 | 6 | 58 | 118 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 22 | 08:10 | 7 | 84 | 154 | 4 | Hikmet ÇAKMAK | HÇ |
| Drawing | 23 | 10:40 | 5 | 70 | 120 | 3 | Korhan YELKENCİ | KY |
| Drawing | 24 | 12:25 | 6 | 51 | 111 | 3 | Olcay PLEVNE | OP |
| Drawing | 25 | 08:00 | 6 | 86 | 146 | 3 | Burçin TANIK | BT |
| Drawing | 26 | 10:30 | 7 | 58 | 128 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 27 | 09:00 | 7 | 39 | 109 | 3 | Ergün EGE | EE |
| Drawing | 30 | 07:35 | 10 | 54 | 154 | 3 | Korhan YELKENCİ | KY |
| Drawing | 31 | 09:20 | 10 | 46 | 146 | 3 | Olcay PLEVNE | OP |
| Monthly Mean of Relative Number: 126.00 [21 observations; 68%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Ergün Ege EE | 5 | 08:43 | 08:43 [5] |
| Korhan Yelkenci KY | 5 | 08:10 | 08:10 [5] |
| Olcay Plevne OP | 4 | 10:08 | 10:08 [4] |
| Hikmet Çakmak HÇ | 3 | 10:33 | 10:33 [3] |
| Burçin Tanık BT | 2 | 08:04 | 08:04 [2] |
| Başar Coşkunoğlu BC | 2 | 10:33 | 10:33 [2] |
| Month total | 21 – 10 | Observing window: 06:00 – 08:00 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): 93 / 151 (62%)
Days without observation: 58
Consecutive days: 2 (longest 11)