Daily Sunspot Evaluation
Observation Sheet Wednesday, 9 May 2001
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)
- 19
- Relative number (R)
- 79
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20010509.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DSI – 8 | 26 | 52W | 18 | 55W | ~4.5 | |
| 2 | HS – 1 | 20 | 21W | 347 | 24W | ~2.5 | |
| 3 | CSO – 3 | -9 | 28W | 354 | 31W | ~3 | |
| 4 | HS – 4 | -17 | 12W | 338 | 15W | 2 | |
| 5 | HA – 2 | -22 | 23E | 303 | 20E | ~3.5 | |
| 6 | HS – 1 | -10 | 51E | 275 | 48E | ~1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.