Daily Sunspot Evaluation
Observation Sheet Sunday, 8 December 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)
- 4
- Number of spots (f)
- 92
- Relative number (R)
- 132
- Observer
- AT
- Reading
- all checks consistent
- File
- 19681208.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 6 | 19 | 15E | 340 | |||
| 2 | H – 5 | -32 | 66E | 289 | |||
| 3 | D – 7 | -12 | 41W | 36 | |||
| 4 | F – 74 | 14 | 32W | 27 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.