Daily Sunspot Evaluation
Observation Sheet Saturday, 16 May 1998
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)
- 112
- Relative number (R)
- 142
- Observer
- HE
- Reading
- all checks consistent
- File
- 19980516.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FRI – 41 | 2 | 17E | 281 | 16E | 11.5 | 84 |
| 2 | EAC – 36 | -21 | 50W | 348 | 51W | 15 | 81 |
| 3 | FRI – 35 | -28 | 15E | 283 | 14E | 11 | 83 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.