Daily Sunspot Evaluation
Observation Sheet Wednesday, 24 April 1968
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)
- 28
- Relative number (R)
- 68
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19680424.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | 7 | 21E | 109 | |||
| 2 | J – 1 | -24 | 60E | 70 | |||
| 3 | A – 2 | -34 | 24W | 154 | |||
| 4 | B – 21 | 13 | 13W | 143 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.