Daily Sunspot Evaluation
Observation Sheet Monday, 29 September 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)
- 139
- Relative number (R)
- 329
- Observer
- SG
- Reading
- all checks consistent
- File
- 19580929.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 6 | 19 | 1E | ||||
| 2 | A – 1 | 32 | 12E | ||||
| 3 | D – 22 | 29 | 28E | ||||
| 4 | C – 23 | 9 | 20E | ||||
| 5 | ? – 2 | -8 | 78E | ||||
| 6 | A – 1 | -13 | 60E | ||||
| 7 | B – 7 | -14 | 35E | ||||
| 8 | A – 1 | -31 | 29E | ||||
| 9 | E – 26 | -11 | 11E | ||||
| 10 | A – 3 | -6 | 5E | ||||
| 11 | C – 17 | -23 | 3E | ||||
| 12 | C – 7 | -11 | 7W | ||||
| 13 | G – 6 | -18 | 12W | ||||
| 14 | G – 2 | -6 | 32W | ||||
| 15 | A – 2 | 14 | 50W | ||||
| 16 | A – 3 | 13 | 15W | ||||
| 17 | C – 5 | 30 | 66W | ||||
| 18 | A – 2 | 27 | 37W | ||||
| 19 | H – 3 | 18 | 9W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.