Daily Sunspot Evaluation
Observation Sheet Tuesday, 12 August 2003
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)
- 5
- Number of spots (f)
- 54
- Relative number (R)
- 104
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20030812.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | -14 | 70W | 304 | 73W | ~1.5 | 228 |
| 2 | HA – 1 | -7 | 64W | 298 | 67W | ~2 | 218 |
| 3 | EKC – 9 | -18 | 59W | 293 | 62W | 11 | 222 |
| 4 | DAI – 13 | -23 | 24W | 258 | 27W | 8 | 226 |
| 5 | DAI – 30 | -13 | 39E | 195 | 36E | 9 | 227 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.