Daily Sunspot Evaluation
Observation Sheet Monday, 23 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)
- 2
- Number of spots (f)
- 18
- Relative number (R)
- 38
- Observer
- NA
- Reading
- all checks consistent
- File
- 19980223.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 8 | -20 | 73W | 14 | 75W | 5.5 | 28 |
| 2 | CAO – 10 | -23 | 32W | 333 | 34W | 4 | 33 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.