Daily Sunspot Evaluation
Observation Sheet Wednesday, 24 January 1973
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)
- 3
- Number of spots (f)
- 4
- Relative number (R)
- 34
- Observer
- ED
- Reading
- counts consistent, some coordinates doubtful
- File
- 19730124.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 11 | 14E | 240 | 15 | ||
| 2 | A – 1 | -14 | 7W | 325 ⚠ | 14 | ||
| 3 | J – 1 | 12 | 62W | 316 | 41 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.