Daily Sunspot Evaluation
Observation Sheet Sunday, 4 January 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)
- 2
- Number of spots (f)
- 4
- Relative number (R)
- 24
- Observer
- TA
- Reading
- all checks consistent
- File
- 19980104.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 18 | 69W | 308 | 94W | 4 | 2 |
| 2 | HA – 3 | 21 | 68W | 307 | 90W | 4.5 | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.