IPA: /ˌæstrəˈmɛtrɪk/
KK: /æstrəˈmɛtrɪk/
Related to the measurement of the positions and movements of stars and other celestial bodies.
The astrometric data collected by the telescope helped scientists understand the star's movement.
Astrometric is formed from "astro-" (from Greek "astron", meaning star) and "metric" (from Greek "metron", meaning measure). The word refers to the measurement of stars and their positions in the sky.
Think of 'astro-' meaning 'star' and 'metric' meaning 'measure' — this helps you remember that astrometric relates to measuring stars.