Daily Sunspot Evaluation
Observation Sheet Saturday, 28 March 1959
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)
- 10
- Number of spots (f)
- 103
- Relative number (R)
- 203
- Observer
- AB
- Reading
- all checks consistent
- File
- 19590328.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 7 | 19 | 2E | ||||
| 2 | H – 10 | 8 | 18E | ||||
| 3 | F – 21 | 25 | 35E | ||||
| 4 | E – 17 | 13 | 47E | ||||
| 5 | B – 7 | -4 | 26E | ||||
| 6 | ? – 1 | -9 | 78E | ||||
| 7 | J – 1 | -33 | 25W | ||||
| 8 | E – 18 | -8 | 13W | ||||
| 9 | E – 5 | 17 | 53W | ||||
| 10 | E – 16 | 24 | 25W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.