Daily Sunspot Evaluation
Observation Sheet Sunday, 9 November 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)
- 3
- Relative number (R)
- 23
- Observer
- MB
- Reading
- all checks consistent
- File
- 19971109.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 2 | 21 | 53W | 310 | 55W | 1 | 32 |
| 2 | HR – 1 | 29 | 52E | 205 | 50E | 0.5 | 35 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.