Daily Sunspot Evaluation
Observation Sheet Sunday, 4 December 1988
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)
- 62
- Relative number (R)
- 142
- Observer
- HÇ
- Reading
- all checks consistent
- File
- 19881204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAC – 10 | 13 | 39W | 149 | 40W | 11.75 | 332 |
| 2 | CAO – 8 | 13 | 06W | 116 | 07W | 4.0 | 329 |
| 3 | CSO – 12 | 18 | 15E | 95 | 14E | 11.0 | 333 |
| 4 | BRO – 4 | 26 | 68E | 42 | 67E | 7.0 | 338 |
| 5 | ? – 2 | 21 | 78E | 32 | 77E | 2.0 | 339 |
| 6 | DHO – 7 | -19 | 43W | 153 | 44W | 4.5 | 331 |
| 7 | DAC – 18 | -14 | 11W | 121 | 12W | 9.5 | 335 |
| 8 | HA – 1 | -22 | 62E | 48 | 61E | 1.5 | 337 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.