Xiǎng cè xīngpán xūyào zhǔnquè de chūshēng shíjiān.
To cast a chart you need an accurate birth time.
Tips
usage
In historical/astronomy contexts 星盘 means 'astrolabe.' In modern everyday speech it almost always refers to an astrological birth chart, thanks to app-driven astrology (占星 zhānxīng) culture among young adults.