Daily Sunspot Evaluation
Observation Sheet Monday, 19 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)
- 5
- Number of spots (f)
- 44
- Relative number (R)
- 94
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19930419.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 6 | 09W | 286 | 11W | 1 | 91 |
| 2 | DSC – 26 | 11 | 47E | 230 | 45E | 9 | 93 |
| 3 | AX – 1 | -10 | 14W | 291 | 16W | - | 95 |
| 4 | AX – 2 | -6 | 03W | 280 | 05W | 0.5 | 94 |
| 5 | CSS – 13 | -15 | 68E | 209 | 66E | 12 | 92 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.