Daily Sunspot Evaluation
Observation Sheet Monday, 21 January 1985
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)
- 41
- Relative number (R)
- 71
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19850121.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 6 | 5 | 21E | 22 | 19E | 5 | |
| 2 | EKC – 32 | -9 | 31W | 74 | 33W | 12.5 | |
| 3 | AXK – 3 | -6 | 45E | 358 | 43E | 1.75 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.