Daily Sunspot Evaluation
Observation Sheet Wednesday, 13 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)
- 6
- Number of spots (f)
- 49
- Relative number (R)
- 109
- Observer
- TG
- Reading
- all checks consistent
- File
- 20030813.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | -6 | 75W | 296 | 78W | 3 | 218 |
| 2 | EKI – 6 | -18 | 72W | 293 | 75W | ~15 | 222 |
| 3 | BXI – 12 | -23 | 37W | 258 | 40W | 9 | 226 |
| 4 | DAI – 27 | -13 | 26E | 195 | 23E | ~10 | 227 |
| 5 | AX – 1 | -23 | 40E | 181 | 37E | - | 229 |
| 6 | ? – 1 | -4 | 77E | 144 | 74E | - | 230 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.