Daily Sunspot Evaluation
Observation Sheet Wednesday, 11 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
- SB0
- Reading
- all checks consistent
- File
- 19980211.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 2 | -24 | 18W | 117 | 20W | 2 | 22 23 |
| 2 | HS – 1 | -39 | 09E | 90 | 07E | 1 | 23 24 |
| 3 | DSI – 4 | -25 | 66E | 33 | 64E | 8 | 26 25 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.