Daily Sunspot Evaluation
Observation Sheet Monday, 10 February 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)
- 82
- Relative number (R)
- 182
- Observer
- FY
- Reading
- all checks consistent
- File
- 19580210.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 5 | 20 | 87E | ||||
| 2 | A – 1 | 12 | 32E | ||||
| 3 | H – 6 | 12 | 41E | ||||
| 4 | A – 2 | -16 | 1W | ||||
| 5 | E – 37 | -21 | 12W | ||||
| 6 | H – 6 | -14 | 27W | ||||
| 7 | D – 15 | -13 | 61W | ||||
| 8 | ? – 1 | 7 | 78W | ||||
| 9 | A – 2 | 18 | 32W | ||||
| 10 | C – 7 | 25 | 1W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.