Synonyms|89Antonyms|3|Broader|92Narrower|238Related|111

76 entries under system topic. ×

5
oort cloud(noun, expression, study, treatment, science)
4
asterism(noun, study, treatment, science, knowledge)
4
astronomer(noun, study, treatment, science, knowledge)
4
comet(noun, study, treatment, science, knowledge)
4
galaxy(noun, study, treatment, science, knowledge)
4
meteor(noun, study, treatment, science, knowledge)
4
meteoroid(noun, study, treatment, science, knowledge)
3
cosmos(noun, science, space, universe)
1
alpha centauri(noun, space, cosmos)
1
aphelion(noun, space, cosmos)
1
asteroid(noun, space, cosmos)
1
astronaut(noun, space, cosmos)
1
astronomical unit(noun, space, cosmos)
1
azimuth(noun, space, cosmos)
1
bailey's beads(noun, space, cosmos)
1
big bang theory(noun, space, cosmos)
1
binary star(noun, space, cosmos)
1
black body(noun, space, cosmos)
1
black hole(noun, space, cosmos)
1
bolometer(noun, space, cosmos)
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