Daily Sunspot Evaluation
Observation Sheet Wednesday, 9 July 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)
- 10
- Number of spots (f)
- 88
- Relative number (R)
- 188
- Observer
- MH
- Reading
- all checks consistent
- File
- 19580709.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 16 | 32 | 21E | ||||
| 2 | ? – 1 | 17 | 78E | ||||
| 3 | C – 4 | -22 | 49E | ||||
| 4 | E – 26 | -23 | 21BN | ||||
| 5 | J – 1 | -16 | 44W | ||||
| 6 | G – 2 | 3 | 66W | ||||
| 7 | A – 2 | 20 | 64W | ||||
| 8 | B – 19 | 26 | 45W | ||||
| 9 | A – 2 | 25 | 35W | ||||
| 10 | E – 15 | 28 | 23W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.