Daily Sunspot Evaluation
Observation Sheet Thursday, 19 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)
- 7
- Number of spots (f)
- 96
- Relative number (R)
- 166
- Observer
- FY
- Reading
- all checks consistent
- File
- 19590319.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 21 | 16 | 17E | ||||
| 2 | A – 1 | 17 | 52E | ||||
| 3 | ? – 7 | 17 | 65E | ||||
| 4 | A – 1 | -13 | 50W | ||||
| 5 | J – 2 | 9 | 62W | ||||
| 6 | C – 20 | 12 | 21W | ||||
| 7 | F – 44 | 27 | 15W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.