Daily Sunspot Evaluation
Observation Sheet Tuesday, 18 November 1980
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)
- 63
- Relative number (R)
- 153
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19801118.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 6 | 9 | 42E | 329 | 39E | 4 | |
| 2 | EKF – 20 | 12 | 57E | 314 | 54E | 11 | |
| 3 | HAK – 1 | 14 | 63E | 308 | 60E | 2 | |
| 4 | AKK – 1 | 17 | 33W | 44 | 36W | - | |
| 5 | CAF – 12 | 18 | 27W | 38 | 30W | 6 | |
| 6 | DAI – 15 | 16 | 07E | 4 | 04E | 2.5 | |
| 7 | HSI – 1 | -17 | 20E | 351 | 17E | 2 | |
| 8 | ? – 3 | -14 | 80W | 91 | 83W | - | |
| 9 | BXO – 4 | -14 | 03E | 8 | 00 | 3.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.