Daily Sunspot Evaluation
Observation Sheet Friday, 9 May 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)
- 7
- Number of spots (f)
- 40
- Relative number (R)
- 110
- Observer
- SM
- Reading
- counts consistent, some coordinates doubtful
- File
- 19690509.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 9 | 67E | 89 | |||
| 2 | A – 1 | -7 | 54E | 100 | |||
| 3 | A – 3 | -41 | 75E | 79 | |||
| 4 | A – 1 | -16 | 52E | 102 | |||
| 5 | B – 17 | -43 | 47E | 139 ⚠ | |||
| 6 | B – 9 | -19 | 15W | 169 | |||
| 7 | C – 8 | -14 | 20W | 174 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.