Daily Sunspot Evaluation
Observation Sheet Thursday, 1 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)
- 4
- Number of spots (f)
- 19
- Relative number (R)
- 59
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20040101.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 3 | -20 | 29W | 188 | 30W | 2 | 1 |
| 2 | AX – 2 | -10 | 13E | 146 | 12E | ~1 | 2 |
| 3 | DRI – 13 | -5 | 36E | 123 | 35E | 7.5 | 3 |
| 4 | ? – 1 | -11 | 83E | 76 | 82E | 4 | 4 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.