Daily Sunspot Evaluation
Observation Sheet Friday, 4 December 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)
- 6
- Number of spots (f)
- 19
- Relative number (R)
- 79
- Observer
- YK
- Reading
- all checks consistent
- File
- 19921204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | 14 | 75W | 344 | 78W | 2 | 417 |
| 2 | CAE – 11 | 22 | 75W | 344 | 78W | 19 | 619 |
| 3 | HA – 1 | -19 | 69W | 338 | 42W | 2 | 410 |
| 4 | AX – 1 | -12 | 48W | 317 | 51W | - | 422 |
| 5 | AX – 4 | -14 | 54E | 215 | 51E | 2.5 | 621 |
| 6 | HS – 1 | -18 | 69E | 200 | 66E | 2 | 420 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.