Daily Sunspot Evaluation
Observation Sheet Thursday, 3 May 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)
- 26
- Relative number (R)
- 56
- Observer
- SK
- Reading
- all checks consistent
- File
- 19730503.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 11 | -13 | 53E | 336 | 78 | ||
| 2 | A – 13 | -10 | 63W | 92 | 77 | ||
| 3 | A – 2 | -5 | 63W | 92 | 7 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.