Daily Sunspot Evaluation
Observation Sheet Tuesday, 8 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)
- 12
- Number of spots (f)
- 110
- Relative number (R)
- 230
- Observer
- AK
- Reading
- all checks consistent
- File
- 19580708.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 44 | 7E | ||||
| 2 | E – 13 | 32 | 35E | ||||
| 3 | C – 7 | -22 | 66E | ||||
| 4 | E – 20 | -23 | 8W | ||||
| 5 | A – 1 | -17 | 17W | ||||
| 6 | A – 1 | -4 | 10W | ||||
| 7 | J – 1 | -16 | 30W | ||||
| 8 | J – 14 | 5 | 53W | ||||
| 9 | B – 8 | 12 | 65W | ||||
| 10 | J – 3 | 20 | 49W | ||||
| 11 | C – 17 | 26 | 30W | ||||
| 12 | E – 24 | 28 | 13W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.