Daily Sunspot Evaluation
Observation Sheet Monday, 16 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)
- 12
- Relative number (R)
- 42
- Observer
- HM
- Reading
- all checks consistent
- File
- 19880516.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAC – 4 | 24 | 20W | 277 | 18W | 4 | 101 |
| 2 | HA – 1 | -19 | 63W | 320 | 61W | 2 | 95 |
| 3 | DAI – 7 | -18 | 23W | 279 | 21W | 4.5 | 103 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.