Daily Sunspot Evaluation
Observation Sheet Monday, 19 October 1959
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)
- 11
- Number of spots (f)
- 77
- Relative number (R)
- 187
- Observer
- FY
- Reading
- all checks consistent
- File
- 19591019.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 18 | 28E | ||||
| 2 | C – 7 | 10 | 45E | ||||
| 3 | J – 4 | 7 | 27E | ||||
| 4 | F – 33 | 2 | 36E | ||||
| 5 | A – 4 | -10 | 33E | ||||
| 6 | A – 1 | -15 | 37E | ||||
| 7 | B – 7 | -4 | 16E | ||||
| 8 | B – 6 | -14 | 50W | ||||
| 9 | C – 7 | -8 | 41W | ||||
| 10 | H – 5 | 7 | 23W | ||||
| 11 | A – 1 | 13 | 66W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.