Daily Sunspot Evaluation
Observation Sheet Saturday, 18 November 1989
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)
- 10
- Number of spots (f)
- 84
- Relative number (R)
- 184
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19891118.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 6 | 13 | 70W | 255 | 32W | 6 | 756 |
| 2 | AX – 1 | 10 | 01W | 186 | 03W | - | 399 |
| 3 | AR – 5 | 29 | 36E | 149 | 34E | 2.5 | 400 |
| 4 | DAI – 11 | 11 | 60E | 125 | 58E | 8 | 404 |
| 5 | AX – 2 | 21 | 62E | 123 | 60E | 2 | 407 |
| 6 | BXI – 17 | -21 | 30W | 215 | 32W | 9 | 408 |
| 7 | AX – 2 | -26 | 24W | 209 | 26W | 0.5 | 408 |
| 8 | DSC – 22 | -26 | 11W | 196 | 13W | 10 | 405 |
| 9 | BXI – 17 | -9 | 43E | 142 | 41E | 5.5 | 405 |
| 10 | AX – 1 | -30 | 59E | 126 | 57E | 0.5 | 405 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.