Daily Sunspot Evaluation
Observation Sheet Wednesday, 29 December 1971
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)
- 5
- Number of spots (f)
- 26
- Relative number (R)
- 76
- Observer
- FA
- Reading
- all checks consistent
- File
- 19711229.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 22 | 57E | 331 | |||
| 2 | J – 2 | -4 | 59E | 329 | |||
| 3 | B – 12 | -8 | 31E | 357 | |||
| 4 | C – 7 | -14 | 19W | 47 | |||
| 5 | G – 4 | -17 | 72W | 100 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.