Daily Sunspot Evaluation
Observation Sheet Sunday, 13 July 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)
- 10
- Number of spots (f)
- 48
- Relative number (R)
- 148
- Observer
- MB
- Reading
- all checks consistent
- File
- 20030713.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CRI – 7 | 9 | 15E | 256 | 12E | ~6 | 193 |
| 2 | CRO – 5 | 13 | 32E | 239 | 29E | 4.5 | 195 |
| 3 | HR – 1 | 19 | 70E | 201 | 67E | ~0.5 | 196 |
| 4 | ? – 2 | 14 | 78E | 193 | 75E | ~6 | 198 |
| 5 | HR – 1 | -7 | 77W | 348 | 80W | - | 194 |
| 6 | CAO – 5 | -19 | 28W | 299 | 31W | 4.5 | 192 |
| 7 | DAO – 13 | -10 | 21W | 292 | 24W | ~8 | 187 |
| 8 | DRO – 3 | -9 | 09W | 280 | 12W | 3 | 190 |
| 9 | CAI – 8 | -11 | 50E | 221 | 47E | ~6.5 | 191 |
| 10 | CAO – 3 | -13 | 71E | 200 | 68E | 6 | 197 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.