Daily Sunspot Evaluation
Observation Sheet Wednesday, 23 April 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)
- 67
- Relative number (R)
- 147
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20030423.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 8 | 15 | 75W | 337 | 78W | 7 | 91 |
| 2 | EAC – 25 | 17 | 23W | 285 | 26W | 11.5 | 92 |
| 3 | AX – 5 | 18 | 11W | 273 | 14W | 2 | 98 |
| 4 | HA – 7 | 12 | 06E | 256 | 03E | 2 | 93 |
| 5 | BXO – 3 | 5 | 67E | 195 | 64E | 5 | 99 |
| 6 | HK – 15 | -14 | 23E | 239 | 20E | ~5 | 94 |
| 7 | AX – 2 | -6 | 38E | 224 | 35E | ~1 | 96 |
| 8 | AX – 2 | -10 | 59E | 203 | 56E | 1 | 97 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.