Daily Sunspot Evaluation
Observation Sheet Friday, 3 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)
- 6
- Number of spots (f)
- 39
- Relative number (R)
- 99
- Observer
- TÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19920403.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | PHO – 9 | 7 | 62W | 333 ⚠ | 70W | 17 | 141 |
| 2 | BXI – 13 | 13 | 23W | 285 ⚠ | 26W | 5 | 155 |
| 3 | DAE – 5 | -10 | 75W | 341 | 78W | 8 | 142 |
| 4 | BXO – 2 | -12 | 61W | 327 | 64W | 5 | 152 |
| 5 | EAO – 5 | -18 | 50W | 316 | 53W | 12 | 148 |
| 6 | ESO – 5 | -7 | 68E | 198 | 65E | 15 | 150 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.