Daily Sunspot Evaluation
Observation Sheet Thursday, 13 November 1958
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)
- 8
- Number of spots (f)
- 29
- Relative number (R)
- 109
- Observer
- ET
- Reading
- all checks consistent
- File
- 19581113.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 20 | 8E | ||||
| 2 | A – 1 | 21 | 17E | ||||
| 3 | J – 1 | -3 | 36E | ||||
| 4 | ? – 9 | -12 | 61E | ||||
| 5 | J – 1 | -30 | 11E | ||||
| 6 | A – 1 | -12 | 2W | ||||
| 7 | C – 11 | 12 | 42W | ||||
| 8 | A – 3 | 13 | 30W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.