Daily Sunspot Evaluation
Observation Sheet Wednesday, 25 February 1998
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)
- 37
- Relative number (R)
- 77
- Observer
- SB0
- Reading
- all checks consistent
- File
- 19980225.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 14 | 41W | 316 | 44W | - | 37 16 |
| 2 | DAF – 24 | 15 | 02W | 277 | 05W | 8 | 36 29 |
| 3 | AX – 2 | -22 | 63W | 341 | 66W | 2 | 35 24 |
| 4 | DAO – 10 | -17 | 14E | 261 | 11E | 6 | 38 14 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.