Daily Sunspot Evaluation
Observation Sheet Sunday, 7 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)
- 4
- Number of spots (f)
- 31
- Relative number (R)
- 71
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19830807.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 1 | 4 | 59E | 178 | 56E | 242 | |
| 2 | FKO – 22 | -10 | 58W | 295 | 61W | 24 | 219 |
| 3 | HSX – 2 | -21 | 46W | 283 | 49W | 2 | 222 |
| 4 | CAE – 6 | -17 | 10W | 247 | 13W | 5 | 241 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.