Daily Sunspot Evaluation
Observation Sheet Friday, 5 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)
- 14
- Relative number (R)
- 64
- Observer
- OG
- Reading
- all checks consistent
- File
- 19810605.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DSI – 3 | 14 | 48W | 315 | 51W | 9 | |
| 2 | ARX – 1 | 13 | 66E | 201 | 63E | 0.5 | |
| 3 | HAX – 3 | -7 | 77W | 344 | 80W | 5 | |
| 4 | ARX – 1 | -11 | 39E | 228 | 36E | 0.5 | |
| 5 | DAI – 6 | -7 | 43E | 224 | 40E | 6 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.