Daily Sunspot Evaluation
Observation Sheet Monday, 10 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)
- 7
- Number of spots (f)
- 70
- Relative number (R)
- 140
- Observer
- AT
- Reading
- all checks consistent
- File
- 19680610.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 18 | 16 | 24E | 204 | |||
| 2 | G – 6 | 8 | 60E | 168 | |||
| 3 | D – 20 | -15 | 47E | 181 | |||
| 4 | H – 12 | -13 | 20W | 248 | |||
| 5 | J – 2 | -26 | 80W | 308 | |||
| 6 | E – 8 | 12 | 10W | 238 | |||
| 7 | C – 4 | 17 | 23W | 251 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.