Daily Sunspot Evaluation
Observation Sheet Monday, 4 August 1980
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)
- 6
- Number of spots (f)
- 20
- Relative number (R)
- 80
- Observer
- TÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19800804.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRO – 8 | 12 | 50W | 20 | 53W | 4 | |
| 2 | AKK – 4 | 20 | 11W | 34 ⚠ | 14W | 1 | |
| 3 | HAK – 1 | -6 | 76W | 46 | 79W | 1 | |
| 4 | AKK – 3 | -9 | 61W | 31 | 64W | 4 | |
| 5 | HAK – 3 | -4 | 40E | 290 | 37E | 1.5 | |
| 6 | HAK – 1 | -11 | 55E | 275 | 52E | 0.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.