Daily Sunspot Evaluation
Observation Sheet Thursday, 2 October 1969
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
- 19691002.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 27 | 82E | 301 | |||
| 2 | B – 7 | 17 | 50E | 333 | |||
| 3 | E – 22 | -12 | 12E | 11 | |||
| 4 | B – 4 | -13 | 02E | 21 | |||
| 5 | C – 10 | -12 | 35W | 58 | |||
| 6 | J – 2 | -14 | 59W | 82 | |||
| 7 | A – 1 | -11 | 77W | 100 | |||
| 8 | J – 1 | 8 | 68W | 91 | |||
| 9 | A – 3 | 12 | 44W | 67 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.