Daily Sunspot Evaluation
Observation Sheet Saturday, 16 May 1970
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)
- 81
- Relative number (R)
- 141
- Observer
- EH
- Reading
- all checks consistent
- File
- 19700516.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 39 | 17 | 28°E | 256 | |||
| 2 | ? – 1 | 15 | 18°E | 206 | |||
| 3 | J – 2 | -12 | 09°E | 275 | |||
| 4 | J – 2 | -8 | 03°E | 281 | |||
| 5 | F – 30 | -9 | 22°W | 306 | |||
| 6 | G – 7 | 19 | 13°W | 297 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.