Astronomiala Unajo
Astronomiala unajo (AU) esas mezur-unajo equivalanta a 149.6Gm - cirkume la mezavalora disto de la Tero a la suno - uzata por deskriptar disti en la sunala sistemo.
 | Ta artiklo esas klada. Se tu konocas la temo dil artiklo, tu povas helpar ni plugrandiganta ol. |
| Precipua artiklo: parseko |
| Precipua artiklo: lumyaro |
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