Daily Sunspot Evaluation
Observation Sheet Friday, 4 September 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)
- 4
- Number of spots (f)
- 51
- Relative number (R)
- 91
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19920904.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 4 | 35W | 67 | 4W | 2 | 318 |
| 2 | BXI – 3 | 7 | 17E | 12 | 14E | 6.5 | 317 |
| 3 | EAI – 11 | -11 | 72W | 101 | 75W | 13.5 | 316 |
| 4 | ORI – 35 | 9 | 05W | 34 | 08W | 1.5 | 313 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.