Daily Sunspot Evaluation
Observation Sheet Saturday, 10 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)
- 9
- Number of spots (f)
- 75
- Relative number (R)
- 165
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19800510.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HKX – 2 | 11 | 80W | 108 | 83W | 5 | |
| 2 | GAI – 7 | 24 | 41W | 69 | 44W | 3 | |
| 3 | DSI – 11 | 13 | 25W | 53 | 28W | 8.5 | |
| 4 | DSI – 5 | -21 | 64E | 324 | 61E | 7 | |
| 5 | EKC – 34 | -16 | 44E | 344 | 41E | 12 | |
| 6 | EKO – 5 | -20 | 53W | 81 | 56W | 12 | |
| 7 | BXO – 7 | -16 | 43W | 71 | 46W | 5 | |
| 8 | HSX – 1 | -21 | 04W | 32 | 07W | 1 | |
| 9 | BXO – 3 | -31 | 26E | 2 | 23E | 9 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.