Daily Sunspot Evaluation
Observation Sheet Wednesday, 8 April 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)
- 108
- Relative number (R)
- 218
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19700408.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 11 | 11 | 08'E | 56 | |||
| 2 | B – 8 | 17 | 60'E | 4 | |||
| 3 | J – 1 | -1 | 35'E | 29 | |||
| 4 | E – 44 | -12 | 11'E | 53 | |||
| 5 | A – 1 | -12 | 66'E | 358 | |||
| 6 | A – 2 | -21 | 14'E | 50 | |||
| 7 | G – 11 | -14 | 24'W | 88 | |||
| 8 | D – 10 | 9 | 28'W | 92 | |||
| 9 | D – 10 | 17 | 29'W | 93 | |||
| 10 | A – 2 | 27 | 11'W | 75 | |||
| 11 | C – 8 | 29 | 04'W | 68 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.