Daily Sunspot Evaluation
Observation Sheet Monday, 11 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)
- 11
- Number of spots (f)
- 67
- Relative number (R)
- 177
- Observer
- EH
- Reading
- all checks consistent
- File
- 19700511.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 7 | 20 | 53°E | 297 | |||
| 2 | C – 3 | 10 | 33°E | 317 | |||
| 3 | H – 5 | 1 | 62°E | 288 | |||
| 4 | J – 1 | -8 | 69°E | 281 | |||
| 5 | H – 8 | -9 | 47°E | 303 | |||
| 6 | J – 1 | -12 | 77°E | 273 | |||
| 7 | C – 8 | -14 | 06W | 356 | |||
| 8 | ? – 1 | -23 | 83W | 73 | |||
| 9 | H – 1 | -14 | 70W | 60 | |||
| 10 | H – 1 | 12 | 66W | 56 | |||
| 11 | E – 31 | 15 | 19W | 9 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.