Daily Sunspot Evaluation
Observation Sheet Wednesday, 19 August 1987
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)
- 26
- Relative number (R)
- 56
- Observer
- TS
- Reading
- all checks consistent
- File
- 19870819.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HRX – 1 | -27 | 46W | 281 | 49W | 3.62 | 54 |
| 2 | HHX – 3 | -30 | 09W | 244 | 12W | 3.564 | 56 |
| 3 | DAO – 22 | -23 | 03W | 238 | 06W | 10.65 | 57 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.