Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 October 2005
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)
- 17
- Relative number (R)
- 37
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20051004.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 3 | -11 | 59W | 25 | 62W | <1 | |
| 2 | CAO – 14 | -7 | 41E | 285 | 38E | 5.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.