Daily Sunspot Evaluation
Observation Sheet Sunday, 14 September 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)
- 4
- Number of spots (f)
- 35
- Relative number (R)
- 75
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19970914.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ESI – 10 | 22 | 43W | 319 | 46W | 14 | 32 |
| 2 | CAI – 6 | 27 | 50E | 226 | 47E | 8 | 35 |
| 3 | ? – 2 | -27 | 76W | 352 | 79W | 8 | 32 |
| 4 | FKI – 17 | -26 | 16W | 292 | 19W | 18 | 34 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.