Daily Sunspot Evaluation
Observation Sheet Friday, 10 October 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)
- 2
- Number of spots (f)
- 10
- Relative number (R)
- 30
- Observer
- SB0
- Reading
- all checks consistent
- File
- 19971010.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 24 | 24E | 269 | 21E | 1.5 | 81 |
| 2 | DSO – 8 | 31 | 38E | 255 | 35E | 6 | 82 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.