Daily Sunspot Evaluation
Observation Sheet Friday, 12 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)
- 3
- Number of spots (f)
- 6
- Relative number (R)
- 36
- Observer
- TG
- Reading
- all checks consistent
- File
- 20050812.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | 12 | 70W | 15 | 73W | ~3 | |
| 2 | HK – 1 | -12 | 82W | 27 | 85W | ~4 | |
| 3 | DAO – 3 | -13 | 52E | 253 | 49E | ~6 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.