Daily Sunspot Evaluation
Observation Sheet Friday, 23 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)
- 13
- Number of spots (f)
- 82
- Relative number (R)
- 212
- Observer
- ET
- Reading
- all checks consistent
- File
- 19580523.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 10 | 22 | 3E | ||||
| 2 | A – 2 | 17 | 21E | ||||
| 3 | ? – 2 | 22 | 76E | ||||
| 4 | J – 3 | 9 | 50E | ||||
| 5 | J – 1 | -16 | 49E | ||||
| 6 | A – 2 | -20 | 23E | ||||
| 7 | G – 4 | -13 | 2E | ||||
| 8 | A – 5 | -25 | 38W | ||||
| 9 | J – 1 | -24 | 61W | ||||
| 10 | G – 3 | -7 | 50W | ||||
| 11 | C – 7 | 24 | 55W | ||||
| 12 | E – 26 | 9 | 13W | ||||
| 13 | D – 16 | 40 | 28W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.