Daily Sunspot Evaluation
Observation Sheet Thursday, 29 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)
- 6
- Number of spots (f)
- 57
- Relative number (R)
- 117
- Observer
- BG
- Reading
- all checks consistent
- File
- 19601229.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 44 | 16 | 34E | ||||
| 2 | B – 3 | -8 | 40E | ||||
| 3 | A – 1 | -10 | 26E | ||||
| 4 | J – 2 | -9 | 12E | ||||
| 5 | C – 3 | 14 | 32W | ||||
| 6 | B – 4 | 12 | 15W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.