Daily Sunspot Evaluation
Observation Sheet Friday, 24 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)
- 4
- Number of spots (f)
- 35
- Relative number (R)
- 75
- Observer
- AT
- Reading
- all checks consistent
- File
- 19690124.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 17 | 11 | 15E | 83 | |||
| 2 | G – 5 | 13 | 49W | 147 | |||
| 3 | B – 9 | 13 | 35W | 133 | |||
| 4 | J – 4 | 18 | 04W | 102 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.