Daily Sunspot Evaluation
Observation Sheet Friday, 30 July 2004
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)
- 11
- Relative number (R)
- 31
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20040730.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DSO – 10 | 8 | 05W | 259 | 07W | ~8.5 | 444 |
| 2 | HA – 1 | -10 | 79E | 175 | 77E | ~3.0 | 445 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.