Monthly Sunspot Observation Report
April 2026 Sunspot classification and coordinates →
79.37
Monthly mean R
19 / 30
Observation days (63%)
133
Maximum R
11
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 | 08:10 | 7 | 44 | 114 | 3 | Emre YILMAN | EY |
| Drawing | 03 | 13:15 | 5 | 27 | 77 | 3 | Emre YILMAN | EY |
| Drawing | 05 | 08:18 | 6 | 46 | 106 | 3 | Korhan YELKENCİ | KY |
| Drawing | 06 | 10:50 | 8 | 42 | 122 | 3 | Süleyman FİŞEK | SF |
| Drawing | 07 | 06:50 | 7 | 24 | 94 | 3 | Burçin TANIK | İÖ |
| Drawing | 09 | 07:35 | 6 | 7 | 67 | 3 | Yağız ALTIKULAÇ | İÖ |
| Drawing | 11 | 09:05 | 3 | 11 | 41 | 3 | Korhan YELKENCİ | KY |
| Drawing | 12 | 10:20 | 2 | 15 | 35 | 3 | Burçin TANIK | BT |
| Drawing | 13 | 08:18 | 4 | 23 | 63 | 3 | Tuğba BOZTEPE | TB |
| Drawing | 14 | 08:10 | 4 | 18 | 58 | 4 | Tuğba BOZTEPE | TB |
| Drawing | 18 | 11:45 | 2 | 14 | 34 | 3 | Burçin TANIK | BT |
| Drawing | 20 | 09:40 | 2 | 16 | 36 | 3 | İrem ÖZDEMİR | İÖ |
| Drawing | 21 | 09:00 | 3 | 18 | 48 | 3 | Y.ALTIKULAÇ+O.P. | YA |
| Drawing | 23 | 10:15 | 4 | 25 | 65 | 3 | Ergün EGE | EE |
| Drawing | 24 | 10:30 | 7 | 28 | 98 | 3 | İrem ÖZDEMİR | İÖ |
| Drawing | 27 | 10:20 | 6 | 39 | 99 | 3 | Y.ALTIKULAÇ+E.Y. | YA |
| Drawing | 28 | 10:30 | 6 | 51 | 111 | 3 | Emre YILMAN | EY |
| Drawing | 29 | 08:35 | 5 | 57 | 107 | 3 | Tuğba BOZTEPE | TB |
| Drawing | 30 | 08:00 | 7 | 63 | 133 | 3 | Yağız ALTIKULAÇ | YA |
| Monthly Mean of Relative Number: 79.37 [19 observations; 63%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Yağız Altıkulaç YA | 4 | 08:44 | 09:07 [3] |
| Emre Yılman EY | 3 | 10:38 | 10:38 [3] |
| Burçin Tanık BT | 3 | 09:38 | 11:03 [2] |
| Tuğba Boztepe TB | 3 | 08:21 | 08:21 [3] |
| Korhan Yelkenci KY | 2 | 08:42 | 08:42 [2] |
| İrem Özdemir İÖ | 2 | 10:05 | 10:05 [2] |
| Süleyman Fişek SF | 1 | 10:50 | 10:50 [1] |
| Ergün Ege EE | 1 | 10:15 | 10:15 [1] |
| Month total | 19 – 11 | 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 (2026): 48 / 120 (40%)
Days without observation: 72
Consecutive days: 4 (longest 6)