Daily Sunspot Evaluation
Observation Sheet Thursday, 7 August 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)
- 19
- Number of spots (f)
- 126
- Relative number (R)
- 316
- Observer
- FY
- Reading
- all checks consistent
- File
- 19580807.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 25 | 11E | ||||
| 2 | E – 29 | 21 | 12E | ||||
| 3 | J – 2 | 18 | 59E | ||||
| 4 | ? – 11 | -14 | 69E | ||||
| 5 | H – 7 | -11 | 25E | ||||
| 6 | J – 1 | -24 | 53E | ||||
| 7 | C – 6 | -13 | 1W | ||||
| 8 | A – 2 | -10 | 15W | ||||
| 9 | A – 1 | -23 | 44W | ||||
| 10 | C – 7 | -11 | 53W | ||||
| 11 | C – 3 | -5 | 44W | ||||
| 12 | J – 2 | -9 | 74W | ||||
| 13 | C – 4 | 15 | 74W | ||||
| 14 | C – 6 | 24 | 59W | ||||
| 15 | E – 17 | 23 | 47W | ||||
| 16 | J – 3 | 27 | 76W | ||||
| 17 | D – 16 | 24 | 33W | ||||
| 18 | A – 1 | 34 | 26W | ||||
| 19 | C – 6 | 40 | 12W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.