Daily Sunspot Evaluation
Observation Sheet Sunday, 22 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)
- 3
- Number of spots (f)
- 7
- Relative number (R)
- 37
- Observer
- NA
- Reading
- all checks consistent
- File
- 19980222.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | -17 | 78W | 31 | 79W | 03 | 26 24 |
| 2 | AX – 3 | -21 | 61W | 14 | 62W | 25 | 28 36 |
| 3 | HR – 2 | -23 | 18W | 331 | 19W | 02 | 33 22 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.