Daily Sunspot Evaluation
Observation Sheet Tuesday, 13 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)
- 61
- Relative number (R)
- 131
- Observer
- ET
- Reading
- all checks consistent
- File
- 19591013.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 5 | 6 | 58E | ||||
| 2 | E – 33 | -8 | 38E | ||||
| 3 | J – 2 | -15 | 53E | ||||
| 4 | A – 1 | -8 | 14E | ||||
| 5 | A – 1 | 3 | 42W | ||||
| 6 | D – 13 | 4 | 64W | ||||
| 7 | B – 6 | 30 | 24W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.