Daily Sunspot Evaluation
Observation Sheet Thursday, 10 February 1983
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)
- 12
- Relative number (R)
- 32
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19830210.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRO – 2 | 1 | 62E | 7 | 59E | 1 | 45 |
| 2 | DKO – 10 | -19 | 54W | 123 | 57W | 12.5 | 42 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.