Daily Sunspot Evaluation
Observation Sheet Friday, 12 June 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)
- 12
- Number of spots (f)
- 106
- Relative number (R)
- 226
- Observer
- FY
- Reading
- all checks consistent
- File
- 19590612.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | 19 | 3E | ||||
| 2 | E – 37 | 13 | 4E | ||||
| 3 | C – 15 | 23 | 10E | ||||
| 4 | B – 2 | 15 | 15E | ||||
| 5 | H – 2 | 23 | 58E | ||||
| 6 | ? – 11 | 18 | 69E | ||||
| 7 | J – 2 | -4 | 41E | ||||
| 8 | C – 20 | -23 | 32W | ||||
| 9 | A – 2 | -10 | 20W | ||||
| 10 | A – 1 | 11 | 61W | ||||
| 11 | J – 2 | 14 | 72W | ||||
| 12 | C – 8 | 7 | 14W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.