Daily Sunspot Evaluation
Observation Sheet Sunday, 9 March 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)
- 9
- Number of spots (f)
- 133
- Relative number (R)
- 223
- Observer
- WG
- Reading
- all checks consistent
- File
- 19580309.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 22 | 32E | ||||
| 2 | A – 1 | 15 | 34E | ||||
| 3 | C – 24 | 14 | 50E | ||||
| 4 | B – 10 | -11 | 19W | ||||
| 5 | F – 58 | -16 | 26W | ||||
| 6 | G – 10 | 25 | +3W | ||||
| 7 | A – 1 | 16 | 17W | ||||
| 8 | E – 23 | 33 | 27W | ||||
| 9 | B – 3 | 23 | 6W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.