Daily Sunspot Evaluation
Observation Sheet Thursday, 8 December 1960
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)
- 8
- Number of spots (f)
- 14
- Relative number (R)
- 94
- Observer
- BG
- Reading
- all checks consistent
- File
- 19601208.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 27 | 31E | ||||
| 2 | J – 1 | 4 | 69E | ||||
| 3 | J – 1 | -12 | 64E | ||||
| 4 | H – 2 | -15 | 9E | ||||
| 5 | A – 6 | -10 | 45W | ||||
| 6 | H – 1 | -8 | 67W | ||||
| 7 | A – 1 | 18 | 65W | ||||
| 8 | A – 1 | 9 | 9W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.