Daily Sunspot Evaluation
Observation Sheet Saturday, 3 March 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)
- 9
- Relative number (R)
- 39
- Observer
- ED
- Reading
- all checks consistent
- File
- 19730303.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 17 | 52E | 62 | 40 | ||
| 2 | J – 1 | -13 | 64W | 178 | 39 | ||
| 3 | H – 7 | 7 | 27W | 141 | 36 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.