Monthly Sunspot Observation Report
August 2025 Sunspot classification and coordinates →
118.09
Monthly mean R
22 / 31
Observation days (71%)
193
Maximum R
9
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 | 07:40 | 9 | 53 | 143 | 3 | Burçin TANIK | BT |
| Drawing | 04 | 10:20 | 6 | 49 | 109 | 3 | Ergün EGE | EE |
| Drawing | 05 | 10:00 | 5 | 59 | 109 | 3 | Olcay PLEVNE | OP |
| Drawing | 06 | 11:10 | 7 | 47 | 117 | 3 | Burçin TANIK | BT |
| Drawing | 08 | 09:50 | 12 | 73 | 193 | 3 | Ergün EGE | EE |
| Drawing | 09 | 10:50 | 10 | 47 | 147 | 3 | Ergün EGE | EE |
| Drawing | 10 | 09:15 | 11 | 56 | 166 | 3 | Burçin TANIK | BT |
| Drawing | 11 | 09:00 | 9 | 58 | 148 | 3 | Burçin TANIK | BT |
| Drawing | 12 | 09:00 | 9 | 64 | 154 | 3 | Burçin TANIK | BT |
| Drawing | 13 | 08:30 | 10 | 69 | 169 | 3 | Burçin TANIK | BT |
| Drawing | 14 | 12:00 | 10 | 30 | 130 | 3 | Olcay PLEVNE | OP |
| Drawing | 17 | 12:25 | 2 | 3 | 23 | 3 | Olcay PLEVNE | OP |
| Drawing | 18 | 11:10 | 4 | 7 | 47 | 3 | Ergün EGE | EE |
| Drawing | 19 | 12:00 | 3 | 5 | 35 | 3 | Olcay PLEVNE | OP |
| Drawing | 20 | 10:00 | 6 | 12 | 72 | 3 | Ergün EGE | EE |
| Drawing | 21 | 07:00 | 4 | 8 | 48 | 3 | Burçin TANIK | BT |
| Drawing | 22 | 10:15 | 4 | 12 | 52 | 3 | Ergün EGE | EE |
| Drawing | 24 | 11:10 | 7 | 23 | 93 | 3 | Ergün EGE | EE |
| Drawing | 25 | 09:25 | 9 | 46 | 136 | 3 | Ergün EGE | EE |
| Drawing | 26 | 10:15 | 8 | 45 | 125 | 3 | Olcay PLEVNE | OP |
| Drawing | 29 | 12:00 | 10 | 91 | 191 | 3 | Ergün EGE | EE |
| Drawing | 30 | 08:55 | 9 | 101 | 191 | 3 | Burçin TANIK | BT |
| Monthly Mean of Relative Number: 118.09 [22 observations; 71%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Ergün Ege EE | 9 | 10:33 | 10:33 [9] |
| Burçin Tanık BT | 8 | 08:49 | 08:49 [8] |
| Olcay Plevne OP | 5 | 11:20 | 11:20 [5] |
| Month total | 22 – 9 | 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 (2025): 169 / 243 (70%)
Days without observation: 74
Consecutive days: 2 (longest 29)