Monthly Sunspot Observation Report
February 2025 Sunspot classification and coordinates →
132.27
Monthly mean R
11 / 28
Observation days (39%)
176
Maximum R
17
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 | 03 | 10:00 | 5 | 82 | 132 | 3 | Burçin TANIK | BT |
| Drawing | 04 | 07:50 | 5 | 69 | 119 | 3 | Olcay PLEVNE | OP |
| Drawing | 05 | 08:00 | 7 | 56 | 126 | 3 | Burçin TANIK | BT |
| Drawing | 13 | 08:30 | 6 | 22 | 82 | 3 | Korhan YELKENCİ | SF |
| Drawing | 14 | 07:25 | 8 | 38 | 118 | 3 | Ergün EGE | EE |
| Drawing | 20 | 07:00 | 8 | 46 | 126 | 3 | Süleyman FİŞEK | SF |
| Drawing | 21 | 07:30 | 9 | 60 | 150 | 3 | Ergün EGE | EE |
| Drawing | 23 | 07:00 | 10 | 76 | 176 | 3 | Korhan YELKENCİ | KY |
| Drawing | 24 | 08:30 | 9 | 76 | 166 | 3 | Korhan YELKENCİ | KY |
| Drawing | 26 | 08:40 | 7 | 46 | 116 | 3 | Burçin TANIK | BT |
| Drawing | 27 | 12:50 | 11 | 34 | 144 | 3 | Süleyman FİŞEK | SF |
| Monthly Mean of Relative Number: 132.27 [11 observations; 39%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Burçin Tanık BT | 3 | 08:53 | 08:53 [3] |
| Korhan Yelkenci KY | 3 | 08:00 | 07:45 [2] |
| Ergün Ege EE | 2 | 07:28 | 07:28 [2] |
| Süleyman Fişek SF | 2 | 09:55 | 09:55 [2] |
| Olcay Plevne OP | 1 | 07:50 | 07:50 [1] |
| Month total | 11 – 17 | 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 (2025): 32 / 59 (54%)
Days without observation: 27
Consecutive days: 2 (longest 6)