Daily Sunspot Evaluation
Observation Sheet Thursday, 6 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)
- 4
- Relative number (R)
- 24
- Observer
- TA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19970206.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 3 | 3 | 71W | 342 ⚠ | 72W | 10 | 7 |
| 2 | HR – 1 | -22 | 24W | 325 ⚠ | 25W | 1 | 8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.