Daily Sunspot Evaluation
Observation Sheet Sunday, 29 June 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)
- 16
- Number of spots (f)
- 80
- Relative number (R)
- 240
- Observer
- SG
- Reading
- all checks consistent
- File
- 19580629.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 5 | 0 | ||||
| 2 | A – 2 | 15 | 5E | ||||
| 3 | E – 12 | 11 | 9E | ||||
| 4 | A – 3 | 27 | 39E | ||||
| 5 | ? – 6 | 22 | 79E | ||||
| 6 | B – 3 | 11 | 40E | ||||
| 7 | C – 9 | -11 | 19E | ||||
| 8 | C – 4 | -6 | 1E | ||||
| 9 | C – 16 | -21 | 1E | ||||
| 10 | E – 16 | -16 | 10W | ||||
| 11 | A – 1 | -19 | 18W | ||||
| 12 | A – 1 | -24 | 32W | ||||
| 13 | A – 1 | -12 | 47W | ||||
| 14 | A – 2 | 11 | 65W | ||||
| 15 | A – 1 | 17 | 60W | ||||
| 16 | A – 1 | 18 | 31W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.