Daily Sunspot Evaluation
Observation Sheet Friday, 2 May 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)
- 7
- Number of spots (f)
- 90
- Relative number (R)
- 160
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19800502.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 25 | 77W | 211 | 85W | 5 | |
| 2 | HXX – 1 | 10 | 26E | 108 | 23E | 3.5 | |
| 3 | DAO – 3 | 23 | 62E | 72 | 59E | 6.5 | |
| 4 | DAC – 14 | -23 | 66W | 200 | 69W | 9 | |
| 5 | FKC – 45 | -17 | 13W | 147 | 16W | 17 | |
| 6 | DAO – 4 | -16 | 28E | 106 | 25E | 3.5 | |
| 7 | EKC – 21 | -20 | 52E | 82 | 49E | 11.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.