Daily Sunspot Evaluation
Observation Sheet Monday, 26 January 1987
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)
- 2
- Number of spots (f)
- 5
- Relative number (R)
- 25
- Observer
- TS
- Reading
- all checks consistent
- File
- 19870126.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 2 | 13 | 68E | 355 | 66E | 2 | 4 |
| 2 | BXO – 3 | -26 | 60W | 123 | 62W | 3 | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.