Daily Sunspot Evaluation
Observation Sheet Thursday, 26 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)
- 31
- Relative number (R)
- 71
- Observer
- HE
- Reading
- all checks consistent
- File
- 20040226.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKC – 21 | 13 | 18W | 161 | 21W | 10 | 28 |
| 2 | HA – 1 | -24 | 04W | 147 | 07W | 1 | 30 |
| 3 | DAC – 8 | -6 | 03E | 140 | 00 | ~8 | 31 |
| 4 | ? – 1 | -14 | 75E | 68 | 72E | - | 32 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.