Daily Sunspot Evaluation
Observation Sheet Friday, 30 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)
- 18
- Number of spots (f)
- 132
- Relative number (R)
- 312
- Observer
- ET
- Reading
- all checks consistent
- File
- 19580530.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 21 | 27 | 6E | ||||
| 2 | B – 9 | 18 | 18E | ||||
| 3 | A – 1 | 24 | 24E | ||||
| 4 | H – 3 | 25 | 42E | ||||
| 5 | ? – 7 | 25 | 65E | ||||
| 6 | A – 2 | 18 | 46E | ||||
| 7 | A – 2 | 11 | 51E | ||||
| 8 | C – 4 | -14 | 32E | ||||
| 9 | J – 1 | -22 | 73E | ||||
| 10 | B – 4 | -33 | 17E | ||||
| 11 | B – 17 | -18 | 5E | ||||
| 12 | E – 27 | -14 | 4W | ||||
| 13 | J – 1 | -16 | 43W | ||||
| 14 | J – 1 | 9 | 43W | ||||
| 15 | A – 3 | 21 | 29W | ||||
| 16 | B – 18 | 14 | 17W | ||||
| 17 | D – 9 | 21 | 15W | ||||
| 18 | A – 2 | 23 | 5W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.