Daily Sunspot Evaluation
Observation Sheet Sunday, 18 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)
- 270
- Relative number (R)
- 380
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19820718.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CKI – 3 | 11 | 78W | 358 | 81W | 5 | 261 |
| 2 | FKC – 94 | 16 | 45W | 325 | 48W | 25 | 263 |
| 3 | EKI – 53 | 21 | 01W | 281 | 04W | 16 | 272 |
| 4 | EKI – 56 | 13 | 00 | 280 | 03W | 12 | 273 |
| 5 | HSX – 4 | 18 | 38E | 242 | 35E | 3 | 276 |
| 6 | DKC – 7 | -23 | 63W | 343 | 66W | 75 | 267 |
| 7 | ARX – 1 | -5 | 37W | 317 | 40W | 05 | 266 |
| 8 | ESC – 32 | -11 | 24W | 304 | 27W | 16 | 269 |
| 9 | HSX – 1 | -4 | 02W | 282 | 05W | 15 | 270 |
| 10 | BXO – 7 | -20 | 01W | 281 | 04W | 7 | 274 |
| 11 | BRO – 12 | -22 | 12E | 268 | 09E | 7 | 277 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.