Daily Sunspot Evaluation
Observation Sheet Friday, 21 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)
- 7
- Number of spots (f)
- 54
- Relative number (R)
- 124
- Observer
- ET
- Reading
- all checks consistent
- File
- 19581121.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | I – 2 | 17 | 49E | ||||
| 2 | D – 15 | -12 | 44E | ||||
| 3 | C – 14 | -9 | 29E | ||||
| 4 | J – 1 | -25 | 69E | ||||
| 5 | D – 15 | -4 | 9E | ||||
| 6 | H – 5 | 7 | 4W | ||||
| 7 | B – 2 | 22 | 35W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.