Daily Sunspot Evaluation
Observation Sheet Monday, 20 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)
- 9
- Number of spots (f)
- 110
- Relative number (R)
- 200
- Observer
- YK
- Reading
- all checks consistent
- File
- 19891120.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AR – 2 | 30 | 10E | 149 | 08E | 0.5 | 460 |
| 2 | DKC – 28 | 11 | 33E | 126 | 31E | 9 | 466 |
| 3 | DAI – 16 | 20 | 36E | 123 | 34E | 7 | 470 |
| 4 | AR – 1 | 22 | 71E | 88 | 69E | - | 471 |
| 5 | CKI – 4 | 26 | 77E | 82 | 75E | 6 | 472 |
| 6 | AR – 2 | -21 | 60W | 219 | 62W | 2 | 473 |
| 7 | EKI – 26 | -27 | 37W | 196 | 39W | 13 | 475 |
| 8 | DAC – 30 | -9 | 17E | 142 | 15E | 8 | 476 |
| 9 | AR – 1 | -16 | 75E | 84 | 73E | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.