Daily Sunspot Evaluation
Observation Sheet Thursday, 9 June 1960
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)
- 61
- Relative number (R)
- 161
- Observer
- FY
- Reading
- all checks consistent
- File
- 19600609.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 6 | 11 | 17E | ||||
| 2 | C – 11 | 12 | 38E | ||||
| 3 | B – 3 | 16 | 51E | ||||
| 4 | ? – 7 | 20 | 67E | ||||
| 5 | ? – 1 | -11 | 74E | ||||
| 6 | C – 3 | -17 | 33E | ||||
| 7 | ? – 2 | -9 | 87W | ||||
| 8 | E – 7 | 7 | 70W | ||||
| 9 | B – 6 | 9 | 35W | ||||
| 10 | E – 15 | 30 | 48W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.