Daily Sunspot Evaluation
Observation Sheet Saturday, 18 September 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)
- 6
- Number of spots (f)
- 80
- Relative number (R)
- 140
- Observer
- HM
- Reading
- all checks consistent
- File
- 19820918.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 14 | 7 | 38W | 218 | 41W | 8 | 357 |
| 2 | CAI – 11 | 1 | 01W | 181 | 04W | 5.5 | 355 |
| 3 | DAC – 13 | 18 | 30E | 150 | 27E | 8 | 353 |
| 4 | DAI – 13 | 14 | 43E | 137 | 40E | 7.5 | 356 |
| 5 | DAI – 15 | -15 | 00 | 180 | 03W | 7.5 | 352 |
| 6 | DAC – 14 | -11 | 25E | 157 | 20E | 6.5 | 354 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.