Daily Sunspot Evaluation
Observation Sheet Tuesday, 7 July 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)
- 11
- Number of spots (f)
- 89
- Relative number (R)
- 199
- Observer
- ET
- Reading
- all checks consistent
- File
- 19590707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 18 | 15E | ||||
| 2 | A – 3 | 18 | 40E | ||||
| 3 | ? – 1 | 18 | 28E | ||||
| 4 | A – 4 | -10 | 29E | ||||
| 5 | A – 2 | -26 | 0 | ||||
| 6 | E – 18 | 8 | 41W | ||||
| 7 | E – 51 | 14 | 33W | ||||
| 8 | ? – 1 | 29 | 16W | ||||
| 9 | A – 2 | 12 | 15W | ||||
| 10 | J – 3 | 17 | 16W | ||||
| 11 | A – 2 | 18 | 8W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.