Daily Sunspot Evaluation
Observation Sheet Thursday, 11 August 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)
- 4
- Number of spots (f)
- 4
- Relative number (R)
- 44
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20050811.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | 11 | 57W | 16 | 60W | -1 | |
| 2 | HH – 1 | -13 | 65W | 24 | 68W | -3 | |
| 3 | AX – 1 | -15 | 49W | 8 | 52W | ||
| 4 | HS – 1 | -12 | 64E | 255 | 61E | -1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.