Daily Sunspot Evaluation
Observation Sheet Saturday, 31 July 1982
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)
- 37
- Relative number (R)
- 77
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19820731.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 5 | 7 | 04W | 112 | 07W | 55 | 284 |
| 2 | DAO – 6 | 15 | 65E | 43 | 62E | 8 | 286 |
| 3 | BRI – 6 | -12 | 04E | 104 | 01E | 3.75 | 287 |
| 4 | DAI – 20 | -12 | 45E | 63 | 42E | 10 | 285 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.