Daily Sunspot Evaluation
Observation Sheet Friday, 30 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)
- 2
- Number of spots (f)
- 21
- Relative number (R)
- 41
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19830930.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 1 | 11 | 02E | 242 | 01W | 299 | |
| 2 | EXC – 20 | -19 | 23W | 267 | 26W | 13.5 | 296 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.