Daily Sunspot Evaluation
Observation Sheet Saturday, 9 January 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)
- 3
- Number of spots (f)
- 19
- Relative number (R)
- 49
- Observer
- FL
- Reading
- all checks consistent
- File
- 19880109.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRF – 11 | 30 | 16E | 132 | 14E | 8 | 5 |
| 2 | DAF – 4 | -23 | 35W | 183 | 37W | 7 | 3 |
| 3 | DAF – 4 | -25 | 34E | 114 | 32E | 10 | 6 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.