| |||
| polar illuminated zone | |||
| |||
| auroral zone | |||
| auroral belt | |||
|
polarlichtzone : 2 phrases in 2 subjects |
| Astronomy | 1 |
| Communications | 1 |
| |||
| polar illuminated zone | |||
| |||
| auroral zone | |||
| auroral belt | |||
|
polarlichtzone : 2 phrases in 2 subjects |
| Astronomy | 1 |
| Communications | 1 |