Daily Sunspot Evaluation
Observation Sheet Saturday, 29 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)
- 17
- Number of spots (f)
- 197
- Relative number (R)
- 367
- Observer
- AB
- Reading
- all checks consistent
- File
- 19580329.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 28 | -7 | 1E | ||||
| 2 | ? – 3 | 33 | 80E | ||||
| 3 | J – 1 | 24 | 56E | ||||
| 4 | J – 2 | -16 | 73E | ||||
| 5 | ? – 2 | -17 | 85E | ||||
| 6 | E – 20 | -17 | 55E | ||||
| 7 | F – 48 | -22 | 15E | ||||
| 8 | F – 34 | -12 | 3W | ||||
| 9 | A – 1 | -19 | 8W | ||||
| 10 | E – 27 | -6 | 25W | ||||
| 11 | ? – 1 | 9 | 78W | ||||
| 12 | ? – 4 | 25 | 67W | ||||
| 13 | B – 4 | 24 | 69W | ||||
| 14 | A – 2 | 18 | 40W | ||||
| 15 | J – 1 | 20 | 31W | ||||
| 16 | C – 11 | 19 | 12W | ||||
| 17 | B – 8 | 9 | 4W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.