Assertion: star | /r/HasProperty | betelgeuse
Facets:
Source sentences:
text: Around the year 150 CE, the Greek astronomer of the Roman period, Claudius Ptolemy, described Sirius as reddish, along with five other stars, Betelgeuse, Antares, Aldebaran, Arcturus and Pollux, all of which are of orange or red hue.
text: This orange blob shows the star Betelgeuse, as seen by the Atacama Large Millimeter