Daily Sunspot Evaluation
Observation Sheet Thursday, 29 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)
- 12
- Number of spots (f)
- 97
- Relative number (R)
- 217
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19881229.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKI – 6 | 23 | 56W | 198 | 58W | 15.5 | 356 |
| 2 | DAC – 20 | 23 | 23W | 165 | 25W | 9.5 | 361 |
| 3 | HS – 2 | 19 | 21W | 163 | 23W | 2.5 | 362 |
| 4 | DAI – 10 | 17 | 07W | 149 | 09W | 8.5 | 369 |
| 5 | AX – 2 | 20 | 07E | 135 | 05E | 0.5 | 372 |
| 6 | AR – 1 | 26 | 58E | 84 | 56E | - | 374 |
| 7 | AR – 2 | -13 | 47W | 189 | 49W | 1.0 | 367 |
| 8 | AX – 1 | -15 | 37W | 179 | 39W | - | 370 |
| 9 | EAC – 26 | -19 | 15W | 157 | 17W | 10.25 | 365 |
| 10 | HS – 2 | -14 | 09W | 151 | 11W | 2.0 | 366 |
| 11 | CAI – 5 | -41 | 17W | 159 | 19W | 5.0 | 373 |
| 12 | EAC – 20 | -16 | 17E | 125 | 15E | 12.5 | 371 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.