Daily Sunspot Evaluation
Observation Sheet Saturday, 10 May 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)
- 17
- Number of spots (f)
- 90
- Relative number (R)
- 260
- Observer
- AB
- Reading
- all checks consistent
- File
- 19580510.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 18 | 2E | ||||
| 2 | A – 1 | 10 | 2E | ||||
| 3 | A – 1 | 14 | 5E | ||||
| 4 | A – 1 | 6 | 6E | ||||
| 5 | A – 1 | -4 | 36E | ||||
| 6 | C – 10 | -8 | 48E | ||||
| 7 | E – 25 | -18 | 69E | ||||
| 8 | A – 3 | -13 | 32E | ||||
| 9 | D – 10 | 2 | 50W | ||||
| 10 | A – 1 | 4 | 37W | ||||
| 11 | T – 1 | 11 | 45W | ||||
| 12 | B – 6 | 13 | 27W | ||||
| 13 | A – 2 | 24 | 50W | ||||
| 14 | C – 15 | 8 | 11W | ||||
| 15 | G – 6 | 25 | 37W | ||||
| 16 | B – 4 | 20 | 5W | ||||
| 17 | T – 2 | 14 | 2W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.