Daily Sunspot Evaluation
Observation Sheet Friday, 18 June 1982
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)
- 8
- Number of spots (f)
- 54
- Relative number (R)
- 134
- Observer
- OG
- Reading
- all checks consistent
- File
- 19820618.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ARX – 1 | 3 | 77W | 34 | 80W | 2 | 231 |
| 2 | HKX – 2 | 7 | 27W | 344 | 30W | 3 | 235 |
| 3 | FKC – 32 | 12 | 04E | 313 | 01E | 16 | 236 |
| 4 | CAI – 11 | 14 | 40E | 277 | 37E | 9 | 242 |
| 5 | ARX – 1 | 13 | 70E | 247 | 67E | 243 | |
| 6 | DAO – 3 | -17 | 74W | 31 | 77W | 13 | 230 |
| 7 | ARX – 1 | -19 | 65W | 22 | 68W | 241 | |
| 8 | HKX – 3 | -20 | 32E | 285 | 29E | 5 | 240 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.