- (n.) One who is versed in astronomy; one who has a knowledge of the laws of the heavenly orbs or the principles by which their motions are regulated, with their various phenomena.
- (n.) An astrologer.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). astronomer. Retrieved September 20, 2026, from http://smartdefine.org/astronomer/definitions/1976686 |
| Chicago | Webster's. 2011. "astronomer" http://smartdefine.org/astronomer/definitions/1976686 (accessed September 20, 2026). |
| Harvard | Webster's 2011, astronomer, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/astronomer/definitions/1976686>. |
| MLA | Webster's. "astronomer" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/astronomer/definitions/1976686> |