Daily Sunspot Evaluation
Observation Sheet Saturday, 16 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)
- 14
- Relative number (R)
- 44
- Observer
- MS
- Reading
- all checks consistent
- File
- 20050416.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DSI – 7 | 2 | 22E | 44 | 28E | ~7.5 | |
| 2 | HA – 1 | -7 | 59W | 125 | 61W | 20.5 | |
| 3 | CAO – 6 | -9 | 32E | 34 | 30E | 4.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.