Daily Sunspot Evaluation
Observation Sheet Sunday, 15 May 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)
- 25
- Relative number (R)
- 55
- Observer
- MB
- Reading
- all checks consistent
- File
- 20050515.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CHO – 6 | 11 | 10W | 53 | 13W | 9 | |
| 2 | CAO – 7 | -13 | 41W | 84 | 44W | ~7.5 | |
| 3 | DAO – 12 | -15 | 27E | 16 | 24E | ~8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.