Daily Sunspot Evaluation
Observation Sheet Sunday, 19 December 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)
- 3
- Number of spots (f)
- 7
- Relative number (R)
- 37
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19931219.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 10 | 60W | 353 | 62W | - | 287 |
| 2 | AX – 1 | 6 | 39W | 332 | 41W | - | 286 |
| 3 | HS – 5 | 1 | 20E | 273 | 18E | 4 | 285 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.