Daily Sunspot Evaluation
Observation Sheet Thursday, 7 May 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)
- 24
- Relative number (R)
- 64
- Observer
- NA
- Reading
- all checks consistent
- File
- 19920507.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | -7 | 68W | 244 | 78W | - | 178 |
| 2 | DAC – 18 | -27 | 23E | 152 | 22E | 8.5 | 175 |
| 3 | CRO – 4 | -9 | 30E | 145 | 29E | 4 | 130 |
| 4 | HS – 1 | -16 | 69E | 106 | 68E | 2 | 189 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.