Daily Sunspot Evaluation
Observation Sheet Friday, 25 February 2005
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)
- 2
- Number of spots (f)
- 4
- Relative number (R)
- 24
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20050225.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 2 | -9 | 54W | 59 | 56W | -2 | |
| 2 | CAO – 2 | -6 | 71E | 294 | 69E | -5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.