As nouns the difference between astronavigation and astronavigator
is that astronavigation is (nautical) navigation by using the positions of the stars and other heavenly bodies while astronavigator is one who performs astronavigation; an astronaut or space pilot.
astronavigation
English
Noun
(-)
(nautical) Navigation by using the positions of the stars and other heavenly bodies
(scifi) Navigation through space
Synonyms
* (nautical)
* (navigation through space)