Which of these constellations contains the star Vega?

The constellation that contains the star Vega is Lyra. Vega is one of the brightest stars in the night sky and is located within this constellation, which is easily recognizable due to its distinctive shape resembling a lyre (a musical instrument). Vega is also part of the Summer Triangle asterism, which includes two other bright stars from neighboring constellations.

Lyra is situated in the northern hemisphere and is associated with several myths and stories throughout history, often being linked to music or poetry due to its lyre representation. Its significance in astronomy is further emphasized by Vega being one of the three stars that form the prominent summer asterism along with Deneb (in Cygnus) and Altair (in Aquila).