Daily Sunspot Evaluation
Observation Sheet Wednesday, 24 June 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)
- 2
- Number of spots (f)
- 19
- Relative number (R)
- 39
- Observer
- TS
- Reading
- all checks consistent
- File
- 19870624.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKI – 18 | 19 | 05W | 261 | 08W | 8 | 77 |
| 2 | HSX – 1 | -31 | 00 | 256 | 03W | 1.5 | 35 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.