Daily Sunspot Evaluation
Observation Sheet Sunday, 10 September 2000
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)
- 17
- Relative number (R)
- 47
- Observer
- MB
- Reading
- all checks consistent
- File
- 20000910.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 22 | 19E | 242 | 18E | ~0.5 | |
| 2 | BXO – 7 | 28 | 36E | 225 | 35E | ~9 | |
| 3 | ESO – 8 | -18 | 66W | 327 | 67W | 14 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.