Daily Sunspot Evaluation
Observation Sheet Sunday, 21 May 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)
- 3
- Number of spots (f)
- 19
- Relative number (R)
- 49
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20060521.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 6 | 70E | 116 | 68E | ||
| 2 | DAI – 9 | -13 | 30E | 156 | 28E | ~7 | |
| 3 | DAO – 9 | -11 | 40E | 146 | 38E | S |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.