Daily Sunspot Evaluation
Observation Sheet Sunday, 26 April 1970
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)
- 23
- Relative number (R)
- 73
- Observer
- EH
- Reading
- all checks consistent
- File
- 19700426.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 18 | 57°E | 131 | |||
| 2 | ? – 3 | -8 | 69°E | 119 | |||
| 3 | ? – 1 | -11 | 80°E | 108 | |||
| 4 | D – 12 | -10 | 42°W | 230 | |||
| 5 | H – 5 | 10 | 04°W | 192 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.