Daily Sunspot Evaluation
Observation Sheet Sunday, 4 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)
- 8
- Number of spots (f)
- 78
- Relative number (R)
- 158
- Observer
- TÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19800504.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HKX – 9 | 11 | 01W | 108 | 04W | 4.5 | |
| 2 | DAO – 9 | 23 | 36E | 71 | 33E | 6 | |
| 3 | CSI – 3 | 28 | 58E | 49 | 55E | 1.5 | |
| 4 | FKC – 34 | -18 | 41W | 149 | 45W | 20.5 | |
| 5 | DAO – 5 | -32 | 04W | 111 | 07W | 4.5 | |
| 6 | CSO – 2 | -16 | 00 | 107 | 03W | 5.5 | |
| 7 | EHI – 15 | -20 | 15E | 82 ⚠ | 21E | 13 | |
| 8 | HSX – 1 | -20 | 73E | 34 | 70E | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.