Daily Sunspot Evaluation
Observation Sheet Thursday, 4 August 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)
- 80
- Relative number (R)
- 140
- Observer
- TS
- Reading
- counts consistent, some coordinates doubtful
- File
- 19830804.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HRX – 1 | 1 | 46E | 232 | 43E | 0.75 | 232 |
| 2 | BXI – 9 | -21 | 63W | 341 | 66W | 6 | 231 |
| 3 | FKC – 61 | -9 | 15W | 293 | 18W | 23 | 220/219 |
| 4 | HSX – 3 | -20 | 03W | 281 | 06W | 4 | 222 |
| 5 | AXX – 5 | 278 | 03W | 15 ⚠ | 235 | ||
| 6 | AXX – 1 | -7 | 09E | 269 | 06E | - | 236 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.