Monthly Sunspot Observation Report
April 2013 Sunspot classification and coordinates →
141.17
Monthly mean R
24 / 30
Observation days (80%)
226
Maximum R
6
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 | 11:35 | 7 | 45 | 115 | 4 | H.ÇAKMAK=A.G. | AG0 |
| Drawing | 02 | 08:00 | 7 | 65 | 135 | 4 | Özgecan ÖNAL TAŞ | ÖÖ |
| Drawing | 04 | 08:10 | 6 | 25 | 85 | 3 | Orhan GÜNEŞ | OG0 |
| Drawing | 05 | 09:10 | 6 | 54 | 114 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 06 | 08:05 | 8 | 40 | 120 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 07 | 14:05 | 6 | 33 | 93 | 2 | H.ÇAKMAK-Ö.Ö. | ÖÖ |
| Drawing | 10 | 06:40 | 12 | 103 | 223 | 4 | Hikmet ÇAKMAK | HÇ |
| Drawing | 11 | 13:20 | 9 | 99 | 189 | 3 | H.ÇAKMAK-O.G. | OG0 |
| Drawing | 12 | 08:25 | 7 | 110 | 180 | 4 | Başar COŞKUNOĞLU | BC |
| Drawing | 13 | 07:45 | 9 | 100 | 190 | 4 | Asuman GÜLTEKİN | AG0 |
| Drawing | 17 | 08:50 | 6 | 72 | 132 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 18 | 09:35 | 6 | 51 | 111 | 3 | H.ÇAKMAK=O.G. | OG0 |
| Drawing | 19 | 07:10 | 7 | 32 | 102 | 3 | Korhan YELKENCİ | BC |
| Drawing | 20 | 12:18 | 7 | 60 | 130 | 4 | Hikmet ÇAKMAK | HÇ |
| Drawing | 21 | 11:10 | 6 | 75 | 135 | 3 | H.ÇAKMAK-O.G. | OG0 |
| Drawing | 22 | 08:30 | 7 | 54 | 124 | 3 | Asuman GÜLTEKİN | AG0 |
| Drawing | 23 | 07:30 | 7 | 64 | 134 | 3 | Korhan YELKENCİ | KY |
| Drawing | 24 | 06:35 | 8 | 65 | 145 | 4 | Hikmet ÇAKMAK | HÇ |
| Drawing | 25 | 06:50 | 7 | 52 | 122 | 4 | Orhan GÜNEŞ | OG0 |
| Drawing | 26 | 08:50 | 9 | 50 | 140 | 4 | Başar COŞKUNOĞLU | BC |
| Drawing | 27 | 06:20 | 7 | 71 | 141 | 4 | Asuman GÜLTEKİN | AG0 |
| Drawing | 28 | 08:16 | 5 | 60 | 110 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 29 | 07:42 | 8 | 112 | 192 | 3 | Asuman GÜLTEKİN | AG0 |
| Drawing | 30 | 08:15 | 8 | 146 | 226 | 4 | Özgecan ÖNAL | ÖÖ |
| Monthly Mean of Relative Number: 141.17 [24 observations; 80%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Hikmet Çakmak HÇ | 9 | 10:28 | 08:36 [4] |
| Başar Coşkunoğlu BC | 5 | 08:33 | 08:33 [5] |
| Asuman Gültekin Annak AG0 | 4 | 07:34 | 07:34 [4] |
| Ozgecan Önal Taş ÖÖ | 2 | 08:08 | 08:08 [2] |
| Orhan Güneş OG0 | 2 | 07:30 | 07:30 [2] |
| Korhan Yelkenci KY | 2 | 07:20 | 07:30 [1] |
| Month total | 24 – 6 | 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 (2013): 86 / 120 (72%)
Days without observation: 34
Consecutive days: 14 (longest 14)