Assertion: asterism's star | /r/HasProperty | arcturus
Facets:
Source sentences:
text: Amateur astronomers seeking the bright red star Arcturus that anchors the constellation Boötes can find it by using the arc of the Dipper's handle to glide their eyes across the sky.
text: The asterism shares the stars Arcturus and Spica with the Spring Triangle, an asterism formed by these two stars with Regulus, the brightest star in Leo.
text: brightest star, Arcturus, is also part of a mnemonic device used to orient people, which goes: “Arc to Arcturus, speed on to Spica.