Daily Sunspot Evaluation
Observation Sheet Saturday, 4 December 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)
- 6
- Relative number (R)
- 36
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20041204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 3 | 11 | 20W | 36 | 20W | ~4 | 210 |
| 2 | HS – 2 | -13 | 58W | 74 | 58W | ~03 | 208 |
| 3 | HS – 1 | -6 | 55W | 71 | 55W | 1 | 209 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.