As nouns the difference between astronavigation and astrogation
is that astronavigation is (nautical) navigation by using the positions of the stars and other heavenly bodies while astrogation is astronavigation.
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)
astrogation
English
Noun
(-)
astronavigation
Related terms
* astrogate
* astrogator