Daily Sunspot Evaluation
Observation Sheet Wednesday, 5 January 1972
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)
- 17
- Relative number (R)
- 77
- Observer
- HM
- Reading
- all checks consistent
- File
- 19720105.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | -11 | 28E | 267 | |||
| 2 | J – 2 | -22 | 46E | 249 | |||
| 3 | J – 1 | -4 | 34W | 329 | |||
| 4 | A – 7 | 12 | 60W | 355 | |||
| 5 | B – 4 | 9 | 23W | 318 | |||
| 6 | A – 1 | 22 | 36W | 331 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.