Daily Sunspot Evaluation
Observation Sheet Sunday, 2 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)
- 9
- Number of spots (f)
- 24
- Relative number (R)
- 114
- Observer
- DK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670402.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 26 | 19E | 183 ⚠ | |||
| 2 | A – 2 | 16 | 18E | 192 | |||
| 3 | A – 1 | 16 | 24E | 176 ⚠ | |||
| 4 | B – 2 | 23 | 37E | 173 | |||
| 5 | A – 1 | 17 | 43E | 167 | |||
| 6 | A – 1 | 11 | 37E | 173 | |||
| 7 | C – 8 | -20 | 23W | 233 | |||
| 8 | ? – 4 | -23 | 75W | 199 ⚠ | |||
| 9 | ? – 4 | -19 | 72W | 295 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.