Assertion: celestial sphere's star | /r/HasProperty | outshined by achernar
Facets:
Source sentences:
text: The two stars are usually only slightly brighter than the variable Aldebaran (Alpha Tauri), Antares (Alpha Scorpii) and Spica (Alpha Virginis), but are outshined by Achernar (Alpha Eridani), Betelgeuse (Alpha Orionis) and Hadar (Beta Centauri).