Daily Sunspot Evaluation
Observation Sheet Wednesday, 12 February 1992
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)
- 7
- Number of spots (f)
- 97
- Relative number (R)
- 167
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19920212.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAC – 20 | 21 | 48°W | 279 | 50°W | 13° | 69 |
| 2 | RKC – 31 | 11 | 01°W | 232 | 03°W | 17° | 57 |
| 3 | CSI – 12 | 14 | 49°E | 212 | 17°E | 8.5 | 65 |
| 4 | DAO – 8 | -6 | 51°W | 282 | 52°W | 5.5 | 58 |
| 5 | CAI – 6 | -18 | 31°W | 262 | 33°W | 8° | 68 |
| 6 | HR – 1 | -10 | 19°E | 212 | 17°E | 1° | 66 |
| 7 | CKI – 19 | -12 | 40°E | 191 | 38°E | 14.5 | 64 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.