Daily Sunspot Evaluation
Observation Sheet Wednesday, 4 May 1960
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)
- 8
- Number of spots (f)
- 51
- Relative number (R)
- 131
- Observer
- AB
- Reading
- all checks consistent
- File
- 19600504.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 13 | 9E | ||||
| 2 | H – 7 | 29 | 51E | ||||
| 3 | D – 24 | 12 | 27E | ||||
| 4 | H – 9 | -9 | 36E | ||||
| 5 | J – 4 | -16 | 58E | ||||
| 6 | A – 1 | -16 | 8E | ||||
| 7 | J – 2 | -7 | 55W | ||||
| 8 | ? – 3 | 13 | 81W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.