Daily Sunspot Evaluation
Observation Sheet Saturday, 21 January 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)
- 11
- Number of spots (f)
- 63
- Relative number (R)
- 173
- Observer
- HÇ
- Reading
- all checks consistent
- File
- 19890121.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 27 | 22 | 71W | 271 | 73W | 18.0 | 27 |
| 2 | CAI – 8 | 18 | 48W | 248 | 50W | 7.5 | 24 |
| 3 | AX – 7 | 17 | 36W | 236 | 38W | 3.0 | 79 |
| 4 | CHI – 8 | 21 | 01E | 199 | 01W | 8.0 | 72 |
| 5 | HA – 1 | 22 | 30E | 170 | 28E | 1.0 | 58 |
| 6 | HA – 1 | 22 | 70E | 130 | 68E | 1.5 | 50 |
| 7 | ? – 6 | 17 | 70E | 130 | 68E | 9.0 | 51 |
| 8 | BXO – 2 | 14 | 73E | 127 | 71E | 5.0 | 26 |
| 9 | HA – 1 | -20 | 56W | 256 | 58W | 2.0 | 52 |
| 10 | AX – 1 | -18 | 31E | 169 | 29E | - | 37 |
| 11 | AX – 1 | -18 | 37E | 163 | 35E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.