Monthly Sunspot Observation Report
February 2019 Sunspot classification and coordinates →
0.76
Monthly mean R
17 / 28
Observation days (61%)
13
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 | 09:18 | 0 | 0 | 0 | 3 | Talar YONTAN | TY0 |
| Drawing | 02 | 11:26 | 0 | 0 | 0 | 3 | Özgecan ÖNALTAŞ | ÖÖ |
| Drawing | 03 | 11:55 | 0 | 0 | 0 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 04 | 09:15 | 0 | 0 | 0 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 05 | 08:30 | 0 | 0 | 0 | 3 | Korhan YELKENCİ | KY |
| Drawing | 10 | 09:18 | 0 | 0 | 0 | 3 | Talar YONTAN | TY0 |
| Drawing | 11 | 11:00 | 1 | 3 | 13 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 15 | 12:55 | 0 | 0 | 0 | 3 | H.ÇAKMAK-B.C. | BC |
| Drawing | 16 | 07:45 | 0 | 0 | 0 | 3 | H.ÇAKMAK=K.Y. | KY |
| Drawing | 17 | 10:40 | 0 | 0 | 0 | 3 | Olcay PLEVNE | OP |
| Drawing | 18 | 07:11 | 0 | 0 | 0 | 3 | Burcu AKBULUT | BA |
| Drawing | 19 | 09:15 | 0 | 0 | 0 | 3 | Korhan YELKENCİ | KY |
| Drawing | 20 | 09:20 | 0 | 0 | 0 | 3 | Özgecan ÖNALTAŞ | ÖÖ |
| Drawing | 21 | 10:40 | 0 | 0 | 0 | 3 | Olcay PLEVNE | OP |
| Drawing | 22 | 08:53 | 0 | 0 | 0 | 3 | Talar YONTAN | TY0 |
| Drawing | 26 | 08:35 | 0 | 0 | 0 | 3 | Korhan YELKENCİ | KY |
| Drawing | 28 | 08:30 | 0 | 0 | 0 | 3 | O.PLEVNE=B.C. | BC |
| Monthly Mean of Relative Number: 0.76 [17 observations; 61%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Hikmet Çakmak HÇ | 5 | 10:34 | 10:43 [3] |
| Talar Yontan TY0 | 3 | 09:10 | 09:10 [3] |
| Korhan Yelkenci KY | 3 | 08:47 | 08:47 [3] |
| Olcay Plevne OP | 3 | 09:57 | 10:40 [2] |
| Ozgecan Önal Taş ÖÖ | 2 | 10:23 | 10:23 [2] |
| Burcu Akbulut BA | 1 | 07:11 | 07:11 [1] |
| Month total | 17 – 11 | 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 (2019): 32 / 59 (54%)
Days without observation: 27
Consecutive days: 1 (longest 8)