Daily Sunspot Evaluation
Observation Sheet Thursday, 27 September 1979
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 13
- Number of spots (f)
- 119
- Relative number (R)
- 249
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19790927.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 1 | 15 | 14E | 111 | 18E | 224 | |
| 2 | E – 27 | 17 | 28E | 97 | 87E | 228 | |
| 3 | H – 6 | -21 | 33E | 92 | 32E | 230 | |
| 4 | D – 8 | -25 | 15E | 110 | 14E | 232 | |
| 5 | D – 8 | -12 | 15W | 140 | 16W | 231 | |
| 6 | H – 4 | -20 | 41W | 166 | 42W | 216 | |
| 7 | H – 4 | -14 | 33W | 158 | 34W | 225 | |
| 8 | E – 11 | 6 | 66W | 191 | 67W | 211 | |
| 9 | A – 1 | 16 | 56W | 181 | 57W | 238 | |
| 10 | D – 6 | 22 | 65W | 190 | 66W | 235 | |
| 11 | A – 3 | 16 | 25W | 150 | 26W | 227 | |
| 12 | G – 6 | 28 | 37W | 162 | 38W | 214 | |
| 13 | E – 34 | 19 | 01W | 126 | 02W | 222 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.