Daily Sunspot Evaluation
Observation Sheet Friday, 9 September 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)
- 6
- Number of spots (f)
- 44
- Relative number (R)
- 104
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19830909.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKI – 17 | 12 | 65W | 227 | 68W | 10 | 274 |
| 2 | AXX – 3 | 7 | 09W | 171 | 12W | 2.5 | 282 |
| 3 | DAI – 20 | -3 | 14W | 176 | 17W | 6.0 | 235 |
| 4 | HAX – 2 | -10 | 12E | 150 | 09E | 25 | 277 |
| 5 | AXX – 1 | -14 | 16E | 146 | 13E | - | 283 |
| 6 | AXX – 1 | -24 | 26E | 136 | 23E | - | 290 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.