Daily Sunspot Evaluation
Observation Sheet Thursday, 2 April 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)
- 5
- Number of spots (f)
- 51
- Relative number (R)
- 101
- Observer
- NA
- Reading
- all checks consistent
- File
- 19920402.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKO – 24 | 7 | 54W | 333 | 57W | 16 | 141 |
| 2 | DAC – 13 | -8 | 63W | 342 | 66W | 8 | 142 |
| 3 | CAO – 4 | -12 | 46W | 325 | 49W | 7 | 152 |
| 4 | CAO – 8 | -18 | 36W | 315 | 39W | 12 | 143 |
| 5 | ? – 2 | -1 | 76E | 203 | 73E | - | 154 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.