Daily Sunspot Evaluation
Observation Sheet Sunday, 31 May 1959
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)
- 52
- Relative number (R)
- 132
- Observer
- FY
- Reading
- all checks consistent
- File
- 19590531.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 6 | 15E | ||||
| 2 | J – 2 | 13 | 66E | ||||
| 3 | ? – 2 | 6 | 81E | ||||
| 4 | C – 22 | -12 | 60E | ||||
| 5 | E – 8 | -17 | 61W | ||||
| 6 | H – 3 | 2 | 71W | ||||
| 7 | A – 1 | 20 | 44W | ||||
| 8 | D – 12 | 18 | 16W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.