| APA | Smart Define. (1970). magnitude of a star as it appears to an observer on the earth thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/magnitude_of_a_star_as_it_appears_to_an_observer_on_the_earth/thesaurus/synonyms |
| Chicago | Smart Define. 1970. "magnitude of a star as it appears to an observer on the earth thesaurus" https://smartdefine.org/magnitude_of_a_star_as_it_appears_to_an_observer_on_the_earth/thesaurus/synonyms (accessed October 2, 2026). |
| Harvard | Smart Define 1970, magnitude of a star as it appears to an observer on the earth thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/magnitude_of_a_star_as_it_appears_to_an_observer_on_the_earth/thesaurus/synonyms>. |
| MLA | Smart Define. "magnitude of a star as it appears to an observer on the earth thesaurus" 1 January 1970. Web. 2 October 2026. <https://smartdefine.org/magnitude_of_a_star_as_it_appears_to_an_observer_on_the_earth/thesaurus/synonyms> |