Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 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)
- 91
- Relative number (R)
- 191
- Observer
- AB
- Reading
- all checks consistent
- File
- 19600615.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 18 | 45E | ||||
| 2 | C – 6 | 21 | 71E | ||||
| 3 | ? – 1 | 13 | 80E | ||||
| 4 | A – 1 | -5 | 6E | ||||
| 5 | C – 30 | -13 | 8E | ||||
| 6 | J – 2 | -12 | 9W | ||||
| 7 | C – 10 | -10 | 45W | ||||
| 8 | B – 4 | 17 | 54W | ||||
| 9 | C – 12 | 12 | 40W | ||||
| 10 | E – 23 | 19 | 16W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.