Daily Sunspot Evaluation
Observation Sheet Friday, 4 July 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)
- 8
- Number of spots (f)
- 51
- Relative number (R)
- 131
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19800704.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 2 | 18 | 50W | 70 | 53W | 15 | |
| 2 | DKZ – 14 | 28 | 07W | 27 | 10W | 10 | |
| 3 | DAO – 5 | -11 | 69W | 89 | 72W | 11 | |
| 4 | DAI – 15 | -19 | 41W | 61 | 44W | 85 | |
| 5 | AXX – 1 | -26 | 10W | 30 | 13W | - | |
| 6 | CAE – 8 | -5 | 06W | 26 | 09W | 4 | |
| 7 | AXX – 5 | -14 | 33E | 347 | 30E | 1 | |
| 8 | AXA – 1 | -3 | 41E | 339 | 38E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.