Daily Sunspot Evaluation
Observation Sheet Saturday, 9 July 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)
- 5
- Number of spots (f)
- 57
- Relative number (R)
- 107
- Observer
- TS
- Reading
- all checks consistent
- File
- 19830709.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 183 | |||||
| 2 | BXI – 10 | -8 | 22W | 283 | 25W | 3.5 | 186 |
| 3 | CXI – 20 | -21 | 19W | 280 | 22W | 14.5E | 195 |
| 4 | CAI – 24 | -12 | 06W | 267 | 09W | 10 | 187 |
| 5 | HKX – 2 | -17 | 44E | 217 | 41E | 5 | 199 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.