Daily Sunspot Evaluation
Observation Sheet Thursday, 19 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)
- 8
- Number of spots (f)
- 51
- Relative number (R)
- 131
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19890119.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 25 | 22 | 44W | 270 | 46W | 17.0 | 34 |
| 2 | CAO – 6 | 18 | 22W | 248 | 24W | 8.25 | 35 |
| 3 | HA – 2 | 22 | 13E | 213 | 11E | 1.0 | 36 |
| 4 | CHI – 3 | 21 | 27E | 199 | 25E | 6.75 | 37 |
| 5 | HA – 1 | 22 | 56E | 170 | 54E | 12.5 | 38 |
| 6 | FKC – 8 | -32 | 74W | 300 | 76W | 17.0 | 39 |
| 7 | HS – 3 | -20 | 30W | 256 | 32W | 2.5 | 40 |
| 8 | HA – 3 | -20 | 64E | 162 | 62E | 4.5 | 41 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.