Daily Sunspot Evaluation
Observation Sheet Thursday, 10 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)
- 7
- Number of spots (f)
- 74
- Relative number (R)
- 144
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19921210.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 5 | 9 | 50E | 138 | 50E | 4.5 | 428 |
| 2 | HA – 2 | -17 | 16W | 204 | 16W | 2 | 410 |
| 3 | CAO – 13 | -20 | 07W | 195 | 07W | 7 | 430 |
| 4 | DAC – 22 | -5 | 11E | 177 | 11E | 9 | 429 |
| 5 | DAI – 18 | -17 | 24E | 164 | 24E | 8 | 423 |
| 6 | DAC – 12 | -7 | 54E | 134 | 54E | 9 | 427 |
| 7 | BXO – 2 | -12 | 78E | 110 | 78E | 4 | 432 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.