Daily Sunspot Evaluation
Observation Sheet Tuesday, 5 December 1989
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)
- 14
- Number of spots (f)
- 167
- Relative number (R)
- 307
- Observer
- MB
- Reading
- all checks consistent
- File
- 19891205.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKC – 6 | 18 | 73W | 35 | 76W | 6 | 439 |
| 2 | AX – 1 | 27 | 41W | 3 | 44W | - | 441 |
| 3 | DAC – 17 | 10 | 36W | 358 | 39W | 6 | 442 |
| 4 | DAC – 29 | 12 | 07W | 329 | 10W | 9 | 443 |
| 5 | HK – 15 | 18 | 16E | 306 | 13E | 6 | 444 |
| 6 | BAO – 2 | 16 | 22E | 300 | 19E | 4 | 445 |
| 7 | AX – 2 | 16 | 34E | 288 | 31E | 0.5 | 446 |
| 8 | DKF – 50 | 19 | 42E | 280 | 39E | 7 | 447 |
| 9 | ? – 4 | 13 | 76E | 246 | 73E | 7 | 448 |
| 10 | CAI – 4 | -13 | 75W | 37 | 78W | 6 | 449 |
| 11 | CAO – 15 | -10 | 46W | 8 | 49W | 9 | 450 |
| 12 | CAI – 7 | -15 | 45W | 7 | 48W | 2.5 | 451 |
| 13 | CSO – 3 | -17 | 18W | 340 | 21W | 7 | 452 |
| 14 | BXI – 12 | -16 | 10E | 312 | 07E | 6 | 453 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.