Daily Sunspot Evaluation
Observation Sheet Saturday, 30 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)
- 4
- Number of spots (f)
- 12
- Relative number (R)
- 52
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19880430.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | -19 | 21W | 130 | 20W | 1 | 80 |
| 2 | DAE – 5 | -19 | 03W | 112 | 02W | 4.75 | 84 |
| 3 | CKI – 5 | -19 | 02E | 107 | 03E | 6 | 83 |
| 4 | ? – 1 | -20 | 82E | 27 | 83E | - | 0.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.