Daily Sunspot Evaluation
Observation Sheet Sunday, 10 April 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)
- 4
- Number of spots (f)
- 56
- Relative number (R)
- 96
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19830410.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 28 | -10 | 29W | 40 | 30W | 14 | 82 |
| 2 | AXX – 2 | -12 | 18W | 29 | 21W | 86 | |
| 3 | DAI – 24 | -17 | 15E | 356 | 12E | 9 | 84 |
| 4 | HAX – 2 | -9 | 31E | 340 | 28E | 0.75 | 85 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.