Daily Sunspot Evaluation
Observation Sheet Friday, 28 April 2006
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)
- 21
- Relative number (R)
- 41
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20060428.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAC – 13 | -11 | 16E | 114 | 14E | ~6 | |
| 2 | EAO – 8 | -15 | 42E | 88 | 40E | 12 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.