Daily Sunspot Evaluation
Observation Sheet Sunday, 25 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)
- 13
- Number of spots (f)
- 140
- Relative number (R)
- 270
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19800525.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKI – 23 | 17 | 29W | 216 | 30W | 14.5 | |
| 2 | AXA – 4 | 26 | 25W | 212 | 26W | 2 | |
| 3 | ELF – 20 | 10 | 36E | 151 | 35E | 13 | |
| 4 | HKX – 1 | 11 | 82E | 105 | 81E | 3 | |
| 5 | GSO – 3 | -10 | 62W | 249 | 63W | 4 | |
| 6 | AXX – 3 | -16 | 60W | 247 | 61W | 1 | |
| 7 | BEI – 8 | -19 | 16W | 203 | 17W | 2.5 | |
| 8 | HAX – 1 | -24 | 14W | 201 | 15W | 1 | |
| 9 | DKO – 7 | -7 | 01W | 188 | 02W | 10 | |
| 10 | FCC – 35 | -11 | 10E | 177 | 09E | 13 | |
| 11 | HLE – 25 | -19 | 11E | 175 | 11E | 2.5 | |
| 12 | CAE – 8 | -15 | 33E | 154 | 32E | 3 | |
| 13 | ? – 2 | -10 | 77E | 110 | 76E | 13 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.