Daily Sunspot Evaluation
Observation Sheet Friday, 26 December 1997
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)
- 25
- Relative number (R)
- 55
- Observer
- HE
- Reading
- all checks consistent
- File
- 19971226.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HH – 2 | 20 | 50E | 308 | 48E | 3 | 445 |
| 2 | AX – 1 | -20 | 44W | 42 | 46W | 0.5 | 446 |
| 3 | EAC – 22 | -22 | 09E | 349 | 07E | 12 | 443 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.