Daily Sunspot Evaluation
Observation Sheet Monday, 30 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)
- 13
- Number of spots (f)
- 89
- Relative number (R)
- 219
- Observer
- SG
- Reading
- all checks consistent
- File
- 19580630.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 3 | 28 | 27E | ||||
| 2 | G – 6 | 26 | 75E | ||||
| 3 | H – 9 | 22 | 59E | ||||
| 4 | C – 8 | -12 | 5E | ||||
| 5 | C – 18 | -22 | 12W | ||||
| 6 | A – 3 | -18 | 19W | ||||
| 7 | C – 6 | -7 | 14W | ||||
| 8 | E – 13 | -16 | 27WE | ||||
| 9 | A – 3 | 5 | 12WE | ||||
| 10 | A – 1 | 16 | 73W | ||||
| 11 | E – 16 | 11 | 4W | ||||
| 12 | A – 2 | 16 | 8W | ||||
| 13 | A – 1 | 22 | 5W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.