Daily Sunspot Evaluation
Observation Sheet Sunday, 9 February 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)
- 32
- Relative number (R)
- 112
- Observer
- MB
- Reading
- all checks consistent
- File
- 20030209.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 6 | 18 | 20E | 124 | 18E | 4 | 35 |
| 2 | CAO – 7 | 1 | 32E | 112 | 30E | ~8 | 37 |
| 3 | ? – 1 | -6 | 78W | 222 | 80W | ? | 31 |
| 4 | DRO – 7 | -13 | 21W | 165 | 23W | ~9 | 32 |
| 5 | CRO – 4 | -7 | 04W | 148 | 06W | ~5 | 33 |
| 6 | AX – 5 | -18 | 14E | 130 | 12E | ~3.5 | 34 |
| 7 | HA – 1 | -15 | 42E | 102 | 40E | 1.5 | 36 |
| 8 | HS – 1 | -12 | 72E | 72 | 30E | ~2 | 38 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.