Daily Sunspot Evaluation
Observation Sheet Tuesday, 31 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)
- 7
- Number of spots (f)
- 60
- Relative number (R)
- 130
- Observer
- ET
- Reading
- all checks consistent
- File
- 19600531.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 13 | 29 | 59W.E | ||||
| 2 | D – 9 | 12 | 19W.E | ||||
| 3 | H – 22 | -11 | 35W.E | ||||
| 4 | A – 3 | -21 | 18W.E | ||||
| 5 | D – 11 | -17 | 6W.E | ||||
| 6 | J – 1 | 9 | 70R.W | ||||
| 7 | ? – 1 | 14 | 79R.W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.