Daily Sunspot Evaluation
Observation Sheet Tuesday, 1 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)
- 29
- Relative number (R)
- 69
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19920901.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 8 | 2 | 48W | 119 | 51W | 7 | 311 |
| 2 | DRO – 3 | -10 | 29W | 98 | 32W | 3.5 | 316 |
| 3 | HA – 1 | 9 | 25E | 44 | 22E | 0.5 | 315 |
| 4 | CAI – 17 | 9 | 36E | 33 | 33E | 7 | 313 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.