Daily Sunspot Evaluation
Observation Sheet Wednesday, 2 April 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)
- 5
- Number of spots (f)
- 70
- Relative number (R)
- 120
- Observer
- SM
- Reading
- all checks consistent
- File
- 19690402.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 41 | 9 | 05E | 278 | |||
| 2 | H – 10 | 20 | 25E | 258 | |||
| 3 | D – 5 | 23 | 37E | 246 | |||
| 4 | C – 10 | -40 | 51W | 334 | |||
| 5 | D – 4 | 23 | 24W | 307 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.