Daily Sunspot Evaluation
Observation Sheet Friday, 6 February 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)
- 36
- Relative number (R)
- 76
- Observer
- HE
- Reading
- all checks consistent
- File
- 20040206.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ERI – 13 | 13 | 00 | 46 | 02W | 10.5 | 17 |
| 2 | AX – 1 | -8 | 76W | 122 | 78W | 13 | |
| 3 | CRO – 4 | -6 | 03W | 49 | 05W | 4 | 19 |
| 4 | EAI – 18 | -7 | 23E | 23 | 21E | 12 | 18 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.