Daily Sunspot Evaluation
Observation Sheet Friday, 21 November 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)
- 7
- Number of spots (f)
- 61
- Relative number (R)
- 131
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19801121.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAF – 7 | 17 | 30W | 0 | 32W | 5 | |
| 2 | DAK – 18 | 10 | 00 | 330 | 02W | 8.5 | |
| 3 | ELC – 26 | 12 | 14E | 316 | 12E | 12 | |
| 4 | AXX – 4 | 16 | 21E | 309 | 17E | 3 | |
| 5 | DJO – 2 | 15 | 65E | 265 | 43E | 5 | |
| 6 | HSK – 1 | -17 | 21W | 351 | 23W | 2 | |
| 7 | HIX – 3 | -18 | 50E | 280 | 48E | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.