Daily Sunspot Evaluation
Observation Sheet Saturday, 6 June 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)
- 5
- Number of spots (f)
- 15
- Relative number (R)
- 65
- Observer
- SM
- Reading
- all checks consistent
- File
- 19810606.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 1 | 15 | 68W | 321 | 71W | ||
| 2 | AXX – 1 | 11 | 03E | 250 | 00 | ||
| 3 | BXO – 2 | 13 | 55E | 198 | 52E | 4.5 | |
| 4 | ? – 2 | 12 | 79E | 174 | 76E | ||
| 5 | CAI – 9 | -8 | 29E | 224 | 26E | 7.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.