Daily Sunspot Evaluation
Observation Sheet Saturday, 30 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)
- 13
- Number of spots (f)
- 149
- Relative number (R)
- 279
- Observer
- HÇ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19891230.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 26 | 63W | 55 | 65W | - | |
| 2 | DKC – 19 | 23 | 18W | 10 | 20W | +5 | |
| 3 | AX – 2 | 23 | 48E | 304 | 46E | 0.5 | |
| 4 | HA – 2 | 19 | 49E | 303 | 47E | 2 | |
| 5 | BAI – 19 | 13 | 49E | 303 | 47E | 12 | |
| 6 | BAO – 6 | 16 | 67E | 285 | 65E | 5 | |
| 7 | BAI – 5 | 12 | 69E | 284 | 66E | 6 | |
| 8 | FKC – 37 | -27 | 36W | 28 | 28W | 15.5 | |
| 9 | CAE – 13 | -11 | 25W | 17 | 27W | 6 | |
| 10 | AX – 3 | -14 | 17W | 10 | 19W | 0.5 | |
| 11 | CKE – 21 | -9 | 11W | 3 | 13W | 6 | |
| 12 | DKC – 20 | -19 | 08E | 244 ⚠ | 06E | 8.5 | |
| 13 | ? – 1 | -37 | 80E | 272 | 78E | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.