Daily Sunspot Evaluation
Observation Sheet Sunday, 15 May 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)
- 6
- Relative number (R)
- 36
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19880515.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAF – 3 | 24 | 06W | 279 | 07W | 3.5 | 101 |
| 2 | AX – 1 | 22 | 12E | 261 | 11E | 102 | |
| 3 | DAO – 2 | -18 | 50W | 323 | 51W | 3.5 | 95 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.