Daily Sunspot Evaluation
Observation Sheet Sunday, 8 July 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)
- 28
- Relative number (R)
- 58
- Observer
- ED
- Reading
- all checks consistent
- File
- 19730708.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 14 | 2 | 12W | 249 | 420 | ||
| 2 | B – 5 | -6 | 39W | 276 | 429 | ||
| 3 | G – 9 | 13 | 34W | 271 | 427 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.