Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 October 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)
- 10
- Number of spots (f)
- 69
- Relative number (R)
- 169
- Observer
- MH
- Reading
- all checks consistent
- File
- 19581015.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 5 | 25 | 25E | ||||
| 2 | B – 3 | 13 | 31E | ||||
| 3 | E – 6 | -3 | 66E | ||||
| 4 | C – 6 | -4 | 33E | ||||
| 5 | H – 6 | -19 | 24E | ||||
| 6 | C – 11 | -15 | 14E | ||||
| 7 | E – 18 | -29 | 26E | ||||
| 8 | B – 5 | -8 | 1W | ||||
| 9 | C – 6 | -10 | 18W | ||||
| 10 | B – 3 | 26 | 19W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.