Daily Sunspot Evaluation
Observation Sheet Monday, 5 February 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)
- 6
- Relative number (R)
- 36
- Observer
- ED
- Reading
- counts consistent, some coordinates doubtful
- File
- 19730205.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 11 | 80E | 16 | 20 | ||
| 2 | J – 3 | -8 | 22E | 44 ⚠ | 19 | ||
| 3 | A – 2 | -4 | 43W | 139 | 21 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.