Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 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)
- 8
- Number of spots (f)
- 29
- Relative number (R)
- 109
- Observer
- SM
- Reading
- all checks consistent
- File
- 19690115.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 14 | 75°E | 141 | |||
| 2 | J – 1 | -14 | 40°E | 176 | |||
| 3 | E – 14 | -14 | 39°W | 255 | |||
| 4 | J – 1 | -8 | 67°W | 283 | |||
| 5 | ? – 1 | 6 | 78°W | 294 | |||
| 6 | J – 6 | 12 | 44°W | 260 | |||
| 7 | J – 2 | 21 | 59°W | 275 | |||
| 8 | A – 2 | 10 | 22°W | 283 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.