Daily Sunspot Evaluation
Observation Sheet Friday, 8 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)
- 29
- Relative number (R)
- 69
- Observer
- OG
- Reading
- all checks consistent
- File
- 19830408.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 16 | -10 | 03W | 41 | 06W | 8.5 | 82 |
| 2 | AXX – 1 | -12 | 08E | 30 | 05E | 86 | |
| 3 | CAI – 11 | -17 | 41E | 357 | 38E | 6 | 84 |
| 4 | HAX – 1 | -9 | 58E | 340 | 55E | 85 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.