Daily Sunspot Evaluation
Observation Sheet Sunday, 18 January 2004
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)
- 21
- Relative number (R)
- 51
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20040118.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 3 | 74W | 11 | 77W | ? | 6 |
| 2 | HS – 3 | -9 | 34W | 331 | 37W | 2 | 7 |
| 3 | FKC – 16 | -14 | 13E | 284 | 10E | ~14 | 8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.