Daily Sunspot Evaluation
Observation Sheet Sunday, 24 April 1988
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)
- 2
- Number of spots (f)
- 4
- Relative number (R)
- 24
- Observer
- FL
- Reading
- all checks consistent
- File
- 19880424.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HK – 3 | 23 | 73W | 265 | 76W | 5 | 74 |
| 2 | HK – 1 | -20 | 61E | 131 | 58E | 4 | 80 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.