Daily Sunspot Evaluation
Observation Sheet Friday, 15 July 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)
- 13
- Relative number (R)
- 33
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20050715.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 15 | 50W | 5 | 52W | -1 | |
| 2 | EAC – 12 | -12 | 58W | 13 | 60W | 13 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.