Daily Sunspot Evaluation
Observation Sheet Friday, 23 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)
- 15
- Number of spots (f)
- 183
- Relative number (R)
- 333
- Observer
- TÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19800523.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 4 | 16 | 51W | 268 | 54W | 10 | |
| 2 | EAC – 50 | 16 | 01E | 215 | 02W | 12.5 | |
| 3 | AKK – 3 | 24 | 04E | 212 | 01E | 1.5 | |
| 4 | DAI – 11 | 9 | 65E | 151 | 62E | 10 | |
| 5 | HAX – 1 | -8 | 76W | 292 | 79W | 2 | |
| 6 | DAI – 30 | -13 | 34W | 250 | 37W | 10 | |
| 7 | AKK – 2 | -23 | 32W | 248 | 35W | 0.5 | |
| 8 | AKK – 1 | -30 | 12W | 228 | 15W | - | |
| 9 | HKX – 8 | -20 | 14E | 202 | 11E | 3.5 | |
| 10 | IFAX – 5 | -24 | 15E | 201 | 17E | 2 | |
| 11 | AKK – 5 | -23 | 21E | 195 | 18E | 1.5 | |
| 12 | EKO – 16 | -8 | 28E | 188 | 25E | 10.5 | |
| 13 | FKI – 23 | -12 | 40E | 176 | 37E | 15 | |
| 14 | FKI – 21 | -20 | 41E | 175 | 38E | 10.5 | |
| 15 | DAO – 3 | -18 | 42E | 152 ⚠ | 59E | 3.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.