Daily Sunspot Evaluation
Observation Sheet Thursday, 8 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)
- 84
- Relative number (R)
- 124
- Observer
- YK
- Reading
- all checks consistent
- File
- 19930408.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 16 | 04W | 64 | 04W | 2 | 85 |
| 2 | HA – 13 | -4 | 50W | 110 | 50W | 5.5 | 82 |
| 3 | DAI – 11 | -9 | 45W | 105 | 45W | 8 | 88 |
| 4 | EAC – 58 | -11 | 19W | 79 | 19W | 13 | 86 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.