Assertion: asterism's star | /r/HasProperty | kochab
Facets:
Source sentences:
text: In Thales’s day, the stars Kochab and Pherkad (rather than Polaris) marked the approximate direction of the north celestial pole – the point in the sky that is directly above the Earth’s North Pole.
text: In his days, the direction of the North Celestial Pole was marked by the stars Kochab and Pherkad, not by Polaris.