Daily Sunspot Evaluation
Observation Sheet Tuesday, 19 May 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)
- 9
- Number of spots (f)
- 72
- Relative number (R)
- 162
- Observer
- ET
- Reading
- all checks consistent
- File
- 19590519.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 22 | 18 | 24E | ||||
| 2 | C – 14 | 22 | 50E | ||||
| 3 | J – 2 | -6 | 12E | ||||
| 4 | A – 1 | -23 | 31E | ||||
| 5 | ? – 3 | -26 | 76W | ||||
| 6 | B – 3 | 8 | 60W | ||||
| 7 | A – 6 | 17 | 58W | ||||
| 8 | E – 16 | 21 | 48W | ||||
| 9 | A – 5 | 10 | 18W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.