Daily Sunspot Evaluation
Observation Sheet Tuesday, 31 May 1966
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)
- 6
- Number of spots (f)
- 20
- Relative number (R)
- 80
- Observer
- SK
- Reading
- all checks consistent
- File
- 19660531.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 7 | 32 | 40°E | 248 | |||
| 2 | A – 1 | 20 | 60°E | 228 | |||
| 3 | A – 1 | 14 | 52°E | 236 | |||
| 4 | ? – 2 | -28 | 42°E | 216 | |||
| 5 | G – 3 | 5 | 20°W | 308 | |||
| 6 | G – 6 | 24 | 34°W | 322 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.