Daily Sunspot Evaluation
Observation Sheet Thursday, 22 October 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)
- 9
- Number of spots (f)
- 52
- Relative number (R)
- 142
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19701022.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 13 | 12E | 330 | |||
| 2 | G – 15 | 15 | 44E | 298 | |||
| 3 | ? – 2 | 13 | 88E | 254 | |||
| 4 | J – 1 | -6 | 59E | 283 | |||
| 5 | ? – 1 | -23 | 81E | 261 | |||
| 6 | D – 16 | 8 | 52W | 34 | |||
| 7 | A – 1 | 9 | 67W | 49 | |||
| 8 | J – 1 | 17 | 49W | 31 | |||
| 9 | C – 12 | 10 | 03W | 345 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.