Daily Sunspot Evaluation
Observation Sheet Saturday, 4 January 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)
- 7
- Number of spots (f)
- 17
- Relative number (R)
- 87
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19690104.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 9 | 24 | 60E | 301 | |||
| 2 | J – 1 | 3 | 69E | 292 | |||
| 3 | J – 1 | -9 | 83E | 278 | |||
| 4 | J – 2 | -33 | 76E | 285 | |||
| 5 | J – 1 | 12 | 36W | 37 | |||
| 6 | J – 1 | 17 | 35W | 36 | |||
| 7 | J – 2 | 19 | 04W | 5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.