Daily Sunspot Evaluation
Observation Sheet Saturday, 17 July 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)
- 11
- Number of spots (f)
- 232
- Relative number (R)
- 342
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19820717.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 7 | 14 | 66W | 357 | 67W | 5 | 261 |
| 2 | FKC – 77 | 15 | 33W | 324 | 34W | 24.5 | 265 |
| 3 | CAI – 23 | 13 | 10E | 281 | 09E | 8 | 275 |
| 4 | EKC – 53 | 22 | 11E | 280 | 10E | 15 | 272 |
| 5 | HAX – 4 | 18 | 49E | 242 | 48E | 2 | 276 |
| 6 | DAC – 13 | -23 | 50W | 341 | 51W | 11 | 267 |
| 7 | HAX – 2 | -5 | 24W | 315 | 25W | 15 | 266 |
| 8 | EKC – 32 | -11 | 13W | 304 | 14W | 16 | 249 |
| 9 | CAI – 7 | -21 | 10E | 281 | 09E | 6 | 274 |
| 10 | HAX – 1 | -4 | 10E | 281 | 09E | 15 | 270 |
| 11 | CRI – 13 | -22 | 24E | 267 | 23E | 65 | 277 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.