Daily Sunspot Evaluation
Observation Sheet Wednesday, 13 February 2002
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)
- 9
- Number of spots (f)
- 59
- Relative number (R)
- 149
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20020213.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 8 | 73W | 303 | 76W | ~2 | |
| 2 | HA – 1 | 17 | 05E | 225 | 02E | ~1 | |
| 3 | FAC – 33 | 13 | 25E | 205 | 22E | 21 | |
| 4 | HS – 1 | 21 | 26E | 204 | 23E | ~2.5 | |
| 5 | HS – 1 | -27 | 49W | 279 | 52W | ~1 | |
| 6 | DAI – 12 | -14 | 44W | 274 | 47W | 9 | |
| 7 | HA – 2 | -4 | 26W | 256 | 29W | 0.5 | |
| 8 | HA – 3 | -30 | 22W | 252 | 25W | 2 | |
| 9 | DSO – 5 | -24 | 09E | 221 | 06E | ~3.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.