Daily Sunspot Evaluation
Observation Sheet Saturday, 3 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)
- 169
- Relative number (R)
- 339
- Observer
- AB
- Reading
- all checks consistent
- File
- 19580503.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 15 | 12E | ||||
| 2 | G – 15 | 26 | 55E | ||||
| 3 | I – 1 | 11 | 48E | ||||
| 4 | C – 7 | 2 | 48E | ||||
| 5 | A – 1 | -12 | 34E | ||||
| 6 | A – 2 | -11 | 10E | ||||
| 7 | F – 73 | -15 | 1E | ||||
| 8 | B – 5 | -24 | 25W | ||||
| 9 | I – 1 | -17 | 19W | ||||
| 10 | H – 9 | -17 | 52W | ||||
| 11 | ? – 1 | 17 | 80W | ||||
| 12 | B – 4 | 23 | 50W | ||||
| 13 | C – 12 | 30 | 42W | ||||
| 14 | G – 16 | 17 | 23W | ||||
| 15 | I – 1 | 28 | 25W | ||||
| 16 | H – 6 | 20 | 12W | ||||
| 17 | D – 13 | 24 | 8W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.