Daily Sunspot Evaluation
Observation Sheet Wednesday, 20 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)
- 8
- Number of spots (f)
- 43
- Relative number (R)
- 123
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20030820.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAI – 20 | 7 | 39E | 89 | 36E | ~13 | 234 |
| 2 | BXO – 3 | 13 | 45E | 83 | 42E | 3.5 | 237 |
| 3 | AX – 3 | 11 | 69E | 59 | 66E | 2 | 238 |
| 4 | EAO – 4 | -11 | 71W | 199 | 74W | 13 | 227 |
| 5 | AX – 2 | -20 | 50W | 178 | 53W | 0.5 | 229 |
| 6 | AX – 3 | -22 | 31W | 159 | 34W | ~1 | 233 |
| 7 | BXO – 5 | -32 | 13W | 141 | 16W | 3 | 235 |
| 8 | BXO – 3 | -7 | 31E | 97 | 28E | 2.5 | 236 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.