Daily Sunspot Evaluation
Observation Sheet Sunday, 8 March 1981
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)
- 9
- Number of spots (f)
- 51
- Relative number (R)
- 141
- Observer
- OG
- Reading
- all checks consistent
- File
- 19810308.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 3 | 3 | 20W | 22 | 23W | 3 | |
| 2 | HSX – 1 | 11 | 06W | 8 | 09W | 2 | |
| 3 | AXX – 2 | 28 | 13E | 349 | 10E | 0.5 | |
| 4 | HAX – 1 | 24 | 24E | 338 | 21E | 2.5 | |
| 5 | CSI – 14 | 9 | 55E | 307 | 52E | 12 | |
| 6 | ? – 3 | -12 | 77W | 79 | 80W | 3 | |
| 7 | HAX – 2 | -12 | 54W | 56 | 57W | 3.5 | |
| 8 | HAX – 1 | -2 | 37W | 39 | 40W | 2.5 | |
| 9 | EKI – 24 | -5 | 01E | 1 | 02W | 13.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.