Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 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)
- 37
- Relative number (R)
- 97
- Observer
- TA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19920415.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 7 | 31W | 139 | 34W | 163 | |
| 2 | EAO – 11 | 6 | 15E | 93 | 12E | 162 | |
| 3 | AX – 1 | 3 | 78E | 38 ⚠ | 67E | 164 | |
| 4 | HS – 2 | -15 | 43W | 151 | 46W | 156 | |
| 5 | CSO – 14 | -15 | 02E | 106 | 01W | 159 | |
| 6 | FAI – 8 | -26 | 64E | 44 | 61E | 161 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.