Daily Sunspot Evaluation
Observation Sheet Tuesday, 20 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)
- 26
- Relative number (R)
- 56
- Observer
- MS
- Reading
- all checks consistent
- File
- 20040120.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FAC – 14 | 8 | 12E | 258 | 10E | 19 | 11 |
| 2 | ESO – 8 | -14 | 14W | 286 | 16W | ~13.5 | 8 |
| 3 | DAO – 4 | -17 | 01E | 271 | 01W | 4 | 10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.