Daily Sunspot Evaluation
Observation Sheet Sunday, 12 October 2003
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)
- 4
- Relative number (R)
- 34
- Observer
- MB
- Reading
- all checks consistent
- File
- 20031012.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 1 | 24 | 49E | 99 | 47E | ~0.5 | 280 |
| 2 | ? – 1 | -7 | 85W | 233 | 87W | ? | 270 |
| 3 | HR – 2 | -14 | 01E | 147 | 01W | ~1.5 | 275 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.