Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 February 1986
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)
- 42
- Relative number (R)
- 72
- Observer
- TS
- Reading
- all checks consistent
- File
- 19860204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 8 | -3 | 64W | 146 | 66W | 8 | |
| 2 | HKX – 28 | -9 | 21E | 61 | 19E | 5.5 | |
| 3 | CKO – 6 | -3 | 67E | 15 | 65E | 8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.