Monthly Sunspot Observation Report
April 2019 Sunspot classification and coordinates →
10.43
Monthly mean R
28 / 30
Observation days (93%)
26
Maximum R
2
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 | 09:55 | 1 | 7 | 17 | 3 | Talar YONTAN | TY0 |
| Drawing | 02 | 09:00 | 1 | 10 | 20 | 3 | Korhan YELKENCİ | KY |
| Drawing | 03 | 07:30 | 1 | 12 | 22 | 3 | Özgecan ÖNALTAŞ | ÖÖ |
| Drawing | 04 | 09:30 | 0 | 0 | 0 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 05 | 07:20 | 1 | 3 | 13 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 06 | 07:50 | 1 | 1 | 11 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 07 | 10:00 | 1 | 1 | 11 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 08 | 08:15 | 1 | 2 | 12 | 3 | Talar YONTAN | TY0 |
| Drawing | 09 | 06:55 | 1 | 1 | 11 | 3 | Olcay PLEVNE | OP |
| Drawing | 11 | 11:20 | 1 | 1 | 11 | 3 | Süleyman FİŞEK | SF |
| Drawing | 12 | 06:50 | 2 | 2 | 22 | 3 | O.PLEVNE=B.C. | BC |
| Drawing | 13 | 06:50 | 2 | 2 | 22 | 3 | Korhan YELKENCİ | KY |
| Drawing | 14 | 12:50 | 1 | 5 | 15 | 3 | Özgecan ÖNALTAŞ | ÖÖ |
| Drawing | 16 | 12:02 | 1 | 1 | 11 | 3 | Korhan YELKENCİ | KY |
| Drawing | 17 | 07:20 | 2 | 3 | 23 | 3 | Özgecan ÖNALTAŞ | ÖÖ |
| Drawing | 18 | 12:35 | 2 | 6 | 26 | 3 | Süleyman FİŞEK | SF |
| Drawing | 19 | 09:00 | 2 | 3 | 23 | 2 | Hikmet ÇAKMAK | HÇ |
| Drawing | 20 | 08:30 | 1 | 1 | 11 | 3 | Talar YONTAN | TY0 |
| Drawing | 21 | 08:00 | 1 | 1 | 11 | 4 | Hikmet ÇAKMAK | HÇ |
| Drawing | 22 | 07:10 | 0 | 0 | 0 | 3 | Talar YONTAN | TY0 |
| Drawing | 23 | 07:05 | 0 | 0 | 0 | 3 | Korhan YELKENCİ | KY |
| Drawing | 24 | 10:20 | 0 | 0 | 0 | 3 | Olcay PLEVNE | OP |
| Drawing | 25 | 06:15 | 0 | 0 | 0 | 3 | Süleyman FİŞEK | SF |
| Drawing | 26 | 14:15 | 0 | 0 | 0 | 3 | H.ÇAKMAK-B.C. | BC |
| Drawing | 27 | 06:55 | 0 | 0 | 0 | 3 | Süleyman FİŞEK | SF |
| Drawing | 28 | 11:00 | 0 | 0 | 0 | 3 | Olcay PLEVNE | OP |
| Drawing | 29 | 10:20 | 0 | 0 | 0 | 3 | Olcay PLEVNE | OP |
| Drawing | 30 | 13:20 | 0 | 0 | 0 | 4 | H.ÇAKMAK-B.A. | BA |
| Monthly Mean of Relative Number: 10.43 [28 observations; 93%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Hikmet Çakmak HÇ | 6 | 09:58 | 08:02 [4] |
| Olcay Plevne OP | 5 | 09:05 | 09:39 [4] |
| Talar Yontan TY0 | 4 | 08:27 | 08:27 [4] |
| Korhan Yelkenci KY | 4 | 08:44 | 08:44 [4] |
| Süleyman Fişek SF | 4 | 09:16 | 09:16 [4] |
| Ozgecan Önal Taş ÖÖ | 3 | 09:13 | 09:13 [3] |
| Başar Coşkunoğlu BC | 2 | 09:45 | 09:45 [2] |
| Month total | 28 – 2 | 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 (2019): 85 / 120 (71%)
Days without observation: 35
Consecutive days: 15 (longest 19)