Daily Sunspot Evaluation
Observation Sheet Friday, 25 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)
- 12
- Number of spots (f)
- 55
- Relative number (R)
- 175
- Observer
- TÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19800725.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 19 | 69W | 171 | 72W | 1.5 | |
| 2 | BXO – 3 | 15 | 55W | 157 | 58W | 3.5 | |
| 3 | HSX – 1 | 15 | 37W | 139 | 40W | 1 | |
| 4 | HAX – 7 | 11 | 03E | 79 ⚠ | 00 | 2.5 | |
| 5 | HAX – 2 | 20 | 52E | 50 | 49E | 1.5 | |
| 6 | CAO – 3 | 27 | 70E | 32 | 67E | 12.5 | |
| 7 | HKX – 2 | -27 | 68W | 170 | 71W | 11 | |
| 8 | CSI – 4 | -21 | 55W | 157 | 58W | 5 | |
| 9 | AXX – 3 | -14 | 55W | 157 | 58W | 1 | |
| 10 | HAX – 3 | -14 | 22W | 124 | 25W | 3 | |
| 11 | DAI – 23 | -19 | 15W | 117 | 18W | 6.5 | |
| 12 | HAX – 3 | -7 | 61E | 41 | 58E | 6 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.