Daily Sunspot Evaluation
Observation Sheet Wednesday, 26 April 1967
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)
- 6
- Number of spots (f)
- 28
- Relative number (R)
- 88
- Observer
- SK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670426.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 13 | 28 | 18E | 233 | |||
| 2 | B – 6 | -18 | 46E | 209 ⚠ | |||
| 3 | J – 5 | -21 | 41E | 292 ⚠ | |||
| 4 | A – 2 | -13 | 28W | 279 | |||
| 5 | A – 1 | 15 | 35W | 286 | |||
| 6 | H – 1 | 23 | 42W | 293 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.