Daily Sunspot Evaluation
Observation Sheet Sunday, 10 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)
- 6
- Number of spots (f)
- 69
- Relative number (R)
- 129
- Observer
- TS
- Reading
- all checks consistent
- File
- 19830710.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 4 | 8 | 09W | 256 | 11W | 3 | 191 |
| 2 | AXX – 1 | -6 | 34W | 281 | 36W | 0.5 | 186 |
| 3 | CKI – 37 | -21 | 32W | 279 | 34W | 15 | 185 |
| 4 | CAI – 18 | -11 | 19W | 266 | 21W | 10 | 187 |
| 5 | ARX – 2 | -14 | 09W | 256 | 11W | 1.5 | 192 |
| 6 | CKF – 7 | -17 | 32E | 215 | 30E | 6.5 | 188 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.