Daily Sunspot Evaluation
Observation Sheet Monday, 13 October 1969
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)
- 6
- Number of spots (f)
- 18
- Relative number (R)
- 78
- Observer
- MÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19691013.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 3 | 76E | 162 | |||
| 2 | A – 3 | -7 | 01E | 237 | |||
| 3 | H – 3 | -15 | 38W | 276 | |||
| 4 | A – 3 | -15 | 66W | 304 | |||
| 5 | H – 6 | 11 | 47W | 255 ⚠ | |||
| 6 | A – 1 | 26 | 60W | 298 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.