Daily Sunspot Evaluation
Observation Sheet Wednesday, 30 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)
- 14
- Number of spots (f)
- 149
- Relative number (R)
- 289
- Observer
- MH
- Reading
- all checks consistent
- File
- 19580730.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 10 | 5E | ||||
| 2 | D – 18 | 27 | 37E | ||||
| 3 | C – 13 | 16 | 36E | ||||
| 4 | G – 13 | 6 | 9E | ||||
| 5 | D – 13 | -9 | 61E | ||||
| 6 | A – 2 | -8 | 38E | ||||
| 7 | J – 1 | -23 | 59E | ||||
| 8 | G – 21 | -18 | 39W | ||||
| 9 | F – 25 | -15 | 59W | ||||
| 10 | A – 6 | 7 | 23W | ||||
| 11 | A – 1 | 17 | 62W | ||||
| 12 | B – 22 | 19 | 26W | ||||
| 13 | B – 11 | 13 | 8W | ||||
| 14 | H – 1 | 18 | 4W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.