Daily Sunspot Evaluation
Observation Sheet Thursday, 28 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)
- 8
- Number of spots (f)
- 68
- Relative number (R)
- 148
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19800828.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 1 | 23 | 48W | 61 | 51W | ||
| 2 | DAE – 11 | 9 | 24W | 37 | 27W | 5 | |
| 3 | CAI – 21 | 11 | 04E | 9 | 01E | 7 | |
| 4 | AXX – 3 | 18 | 45E | 328 | 42E | 3 | |
| 5 | CAI – 5 | 12 | 73E | 300 | 70E | 5.5 | |
| 6 | HAX – 1 | -5 | 51W | 64 | 54W | 0.5 | |
| 7 | DEC – 16 | -27 | 09E | 4 | 06E | 95 | |
| 8 | EAC – 10 | -7 | 74E | 299 | 71E | 12.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.