Daily Sunspot Evaluation
Observation Sheet Saturday, 10 April 1993
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)
- 58
- Relative number (R)
- 98
- Observer
- TK
- Reading
- all checks consistent
- File
- 19930410.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 9 | 4 | 41W | 76 | 43W | 7.5 | 90 |
| 2 | HA – 7 | -4 | 73W | 108 | 75W | 5 | 82 |
| 3 | CAI – 11 | -8 | 67W | 102 | 69W | 7 | 88 |
| 4 | EAC – 31 | -10 | 44W | 79 | 46W | 14 | 86 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.