Daily Sunspot Evaluation
Observation Sheet Friday, 21 March 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)
- 8
- Number of spots (f)
- 48
- Relative number (R)
- 128
- Observer
- AÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19800321.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 4 | 15 | 29E | 298 | 27E | 6 | |
| 2 | AXX – 1 | 12 | 31E | 296 | 29E | ||
| 3 | HAX – 4 | 26 | 34E | 293 | 32E | 2 | |
| 4 | HKI – 7 | 5 | 54E | 273 | 52E | 3.5 | |
| 5 | HIX – 1 | -19 | 76W | 43 | 78W | 2 | |
| 6 | FAC – 28 | -27 | 21W | 348 | 23W | 17 | |
| 7 | AXX – 2 | -25 | 28E | 279 ⚠ | 26E | 1 | |
| 8 | AXX – 1 | -28 | 50E | 277 | 48E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.