Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 February 1997
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)
- 23
- Relative number (R)
- 43
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19970204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 13 | 5 | 43W | 10 | 44W | 8 | 7 |
| 2 | CRR – 10 | -21 | 05E | 322 | 04E | 6 | 8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.