Daily Sunspot Evaluation
Observation Sheet Thursday, 10 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)
- 124
- Relative number (R)
- 224
- Observer
- FY
- Reading
- all checks consistent
- File
- 19580710.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 29 | 32 | 8E | ||||
| 2 | ? – 1 | 40 | 86E | ||||
| 3 | J – 1 | 16 | 64E | ||||
| 4 | H – 11 | -22 | 36E | ||||
| 5 | E – 51 | -23 | 35W | ||||
| 6 | J – 1 | -16 | 57W | ||||
| 7 | A – 1 | 20 | 78W | ||||
| 8 | C – 9 | 28 | 57W | ||||
| 9 | A – 2 | 25 | 48W | ||||
| 10 | E – 18 | 28 | 36W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.