Daily Sunspot Evaluation
Observation Sheet Wednesday, 1 August 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)
- 4
- Number of spots (f)
- 10
- Relative number (R)
- 50
- Observer
- DK
- Reading
- all checks consistent
- File
- 19730801.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 19 | 15E | 261 | 143 | ||
| 2 | ? – 1 | -10 | 88E | 188 | 144 | ||
| 3 | H – 6 | -5 | 14W | 290 | 139 | ||
| 4 | A – 1 | -10 | 57W | 333 | 145 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.