Daily Sunspot Evaluation
Observation Sheet Friday, 29 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)
- 3
- Number of spots (f)
- 14
- Relative number (R)
- 44
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19880429.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 3 | -23 | 12W | 137 | 13W | 3 | 92 |
| 2 | HS – 1 | -19 | 07W | 132 | 08W | 2.5 | 80 |
| 3 | DKS – 10 | -20 | 17E | 108 | 16E | 7.5 | 83 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.