Daily Sunspot Evaluation
Observation Sheet Monday, 7 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)
- 3
- Number of spots (f)
- 34
- Relative number (R)
- 64
- Observer
- MB
- Reading
- all checks consistent
- File
- 19920907.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 2 | 6 | 28W | 18 | 34W | 1 | 317 |
| 2 | ? – 1 | 13 | 85E | 265 | 82E | - | 320 |
| 3 | GKJ – 31 | -9 | 48W | 38 | 54W | 46 | 315 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.