Daily Sunspot Evaluation
Observation Sheet Friday, 9 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)
- 7
- Number of spots (f)
- 62
- Relative number (R)
- 132
- Observer
- FY
- Reading
- all checks consistent
- File
- 19591009.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 16 | 1E | ||||
| 2 | C – 7 | 31 | 28E | ||||
| 3 | A – 1 | 23 | 39E | ||||
| 4 | C – 11 | -17 | 26W | ||||
| 5 | J – 3 | -18 | 46W | ||||
| 6 | A – 5 | -11 | 36W | ||||
| 7 | E – 33 | 6 | 9W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.