Daily Sunspot Evaluation
Observation Sheet Saturday, 17 May 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)
- 24
- Relative number (R)
- 74
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20030517.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 2 | 8 | 33W | 338 | 36W | ~4.5 | 122 |
| 2 | BXO – 2 | 7 | 22E | 283 | 19E | ~4 | 128 |
| 3 | AX – 2 | -6 | 72W | 17 | 75W | 3 | 130 |
| 4 | HA – 11 | -17 | 03E | 302 | 00 | ~4 | 123 |
| 5 | DAO – 7 | -12 | 61E | 244 | 58E | ~9.5 | 129 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.