Daily Sunspot Evaluation
Observation Sheet Tuesday, 9 February 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)
- 12
- Relative number (R)
- 42
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19880209.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 13 | 70W | 171 | 72W | 1 | 23 |
| 2 | CSO – 4 | 20 | 55W | 156 | 57W | 4 | 29 |
| 3 | CAO – 7 | 27 | 33W | 134 | 35W | 8 | 25 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.