Daily Sunspot Evaluation
Observation Sheet Tuesday, 10 June 1969
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)
- 83
- Relative number (R)
- 183
- Observer
- SK
- Reading
- all checks consistent
- File
- 19690610.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 7 | 13 | 06E | 84 | |||
| 2 | J – 2 | 11 | 09E | 83 | |||
| 3 | H – 7 | 16 | 15E | 75 | |||
| 4 | J – 2 | 19 | 23E | 67 | |||
| 5 | F – 29 | -16 | 02E | 88 | |||
| 6 | B – 2 | -14 | 16W | 106 | |||
| 7 | E – 22 | 10 | 25W | 115 | |||
| 8 | J – 1 | 8 | 14W | 104 | |||
| 9 | J – 2 | 16 | 14W | 104 | |||
| 10 | H – 9 | 11 | 03W | 93 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.