76 entries under system topic. ×
| ionosphere(noun, space, cosmos) | |
| jupiter(noun, space, cosmos) | |
| kuiper belt(noun, space, cosmos) | |
| lagrange points(noun, space, cosmos) | |
| mars(noun, space, cosmos) | |
| mercury(noun, space, cosmos) | |
| meteor shower(noun, space, cosmos) | |
| meteorite(noun, space, cosmos) | |
| milky way(noun, space, cosmos) | |
| minor planet(noun, space, cosmos) | |
| neptune(noun, space, cosmos) | |
| neutron star(noun, space, cosmos) | |
| north star(noun, space, cosmos) | |
| nova(noun, space, cosmos) | |
| orbit(noun, space, cosmos) | |
| outer planets(noun, space, cosmos) |
For more, visit
Astronomy on
Power Thesaurus
| APA | Smart Define. (2016). astronomy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/astronomy/thesaurus/narrower |
| Chicago | Smart Define. 2016. "astronomy thesaurus" https://smartdefine.org/astronomy/thesaurus/narrower (accessed September 27, 2026). |
| Harvard | Smart Define 2016, astronomy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/astronomy/thesaurus/narrower>. |
| MLA | Smart Define. "astronomy thesaurus" 21 January 2016. Web. 27 September 2026. <https://smartdefine.org/astronomy/thesaurus/narrower> |