Daily Sunspot Evaluation
Observation Sheet Wednesday, 27 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)
- 2
- Number of spots (f)
- 9
- Relative number (R)
- 29
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20050427.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 1 | 7 | 49W | 330 | 52W | 60.5 | |
| 2 | DKC – 8 | -8 | 54E | 227 | 51E | ~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.