Daily Sunspot Evaluation
Observation Sheet Thursday, 11 June 1970
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)
- 6
- Number of spots (f)
- 69
- Relative number (R)
- 129
- Observer
- FA
- Reading
- all checks consistent
- File
- 19700611.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 30 | 17 | 10E | 290 | |||
| 2 | E – 13 | 16 | 36E | 264 | |||
| 3 | ? – 6 | 13 | 77E | 223 | |||
| 4 | D – 7 | 16 | 60E | 240 | |||
| 5 | H – 4 | -15 | 05W | 305 | |||
| 6 | B – 9 | -14 | 54W | 354 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.