Daily Sunspot Evaluation
Observation Sheet Friday, 30 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)
- 154
- Relative number (R)
- 274
- Observer
- HE
- Reading
- all checks consistent
- File
- 19881230.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HK – 4 | 23 | 71W | 200 | 78W | 14.0 | 356 |
| 2 | DAI – 23 | 23 | 35W | 164 | 37W | 12.0 | 361 |
| 3 | HA – 8 | 19 | 34W | 163 | 36W | 3.0 | 362 |
| 4 | BRI – 12 | 17 | 21W | 150 | 23W | 7.5 | 369 |
| 5 | BRO – 5 | 27 | 47E | 82 | 45E | 6.0 | 379 |
| 6 | AX – 1 | -14 | 61W | 190 | 63W | - | 367 |
| 7 | DAO – 15 | -40 | 30W | 159 | 32W | 9.5 | 373 |
| 8 | EAC – 42 | -20 | 27W | 156 | 29W | 13.0 | 365 |
| 9 | HS – 1 | -14 | 23W | 152 | 25W | 1.5 | 366 |
| 10 | EAI – 35 | -16 | 03E | 126 | 01E | 13.0 | 371 |
| 11 | AX – 4 | -18 | 19E | 110 | 17E | 2.5 | 375 |
| 12 | AX – 4 | -18 | 39E | 90 | 37E | 3.5 | 376 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.