Daily Sunspot Evaluation
Observation Sheet Sunday, 9 June 1968
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)
- 48
- Relative number (R)
- 108
- Observer
- SM
- Reading
- all checks consistent
- File
- 19680609.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 13 | 11 | 3E | 238 | |||
| 2 | H – 5 | 16 | 37E | 204 | |||
| 3 | J – 2 | 7 | 71E | 170 | |||
| 4 | H – 13 | -14 | 6W | 247 | |||
| 5 | C – 4 | -26 | 69W | 310 | |||
| 6 | B – 11 | 18 | 9W | 250 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.