Daily Sunspot Evaluation
Observation Sheet Saturday, 15 August 1992
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)
- 6
- Number of spots (f)
- 50
- Relative number (R)
- 110
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19920815.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXI – 3 | 18 | 21W | 315 | 24W | 3.5 | 306 |
| 2 | HR – 2 | 16 | 10W | 304 | 13W | 1 | 304 |
| 3 | CKI – 24 | 16 | 38E | 256 | 35E | 14 | 302 |
| 4 | ? – 2 | 13 | 80E | 214 | 77E | - | 305 |
| 5 | HA – 4 | -15 | 16W | 310 | 19W | 2 | 285 |
| 6 | BXI – 15 | -24 | 12W | 306 | 15W | 5 | 303 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.