Daily Sunspot Evaluation
Observation Sheet Wednesday, 6 April 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)
- 3
- Number of spots (f)
- 13
- Relative number (R)
- 43
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20050406.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 11 | -7 | 51W | 249 | 54W | 6.10 | |
| 2 | HA – 1 | -6 | 33E | 165 | 30E | ~1 | |
| 3 | HS – 1 | -7 | 73E | 125 | 70E | ~2.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.