Daily Sunspot Evaluation
Observation Sheet Thursday, 12 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)
- 12
- Number of spots (f)
- 126
- Relative number (R)
- 246
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19890112.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FRO – 8 | 12 | 58W | 16 | 60W | 18.5 | 10 |
| 2 | DSO – 6 | 29 | 42W | 0 | 44W | 13.0 | 13 |
| 3 | CAI – 11 | 20 | 49E | 269 | 47E | 12.0 | 21 |
| 4 | HA – 1 | 29 | 52E | 266 | 50E | 1.5 | 22 |
| 5 | EKI – 6 | 18 | 74E | 244 | 72E | 12.0 | 24 |
| 6 | BRI – 8 | -24 | 33W | 351 | 35W | 6.0 | 17 |
| 7 | HK – 3 | -18 | 31W | 349 | 33W | 5.0 | 16 |
| 8 | EKI – 16 | -15 | 13W | 331 | 15W | 13.0 | 18 |
| 9 | EKC – 56 | -31 | 13E | 305 | 11E | 13.5 | 19 |
| 10 | BRO – 2 | -20 | 35E | 283 | 33E | 5.0 | 13 |
| 11 | HA – 3 | -33 | 41E | 277 | 39E | 2.5 | 20 |
| 12 | HK – 6 | -20 | 62E | 256 | 60E | 6.5 | 16 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.