The Bright Stars: Rigel and Betelgeuse

Which star appears bluish and which one appears reddish?

1. Rigel appears as a bright bluish star

2. Betelgeuse appears as a bright reddish star

Answer:

Rigel appears as a bright bluish star, while Betelgeuse appears as a bright reddish star.

Stars in the night sky come in different colors, each indicative of their temperature. Rigel, the bluish star, is hotter than Betelgeuse, the reddish star.

Blue stars like Rigel are some of the hottest stars in the universe, with surface temperatures that can reach up to a scorching 30,000 Kelvin. On the other hand, red stars such as Betelgeuse are relatively cooler, with temperatures in the range of about 2,000 to 3,500 Kelvin.

Therefore, when saying 'Rigel is _____ Betelgeuse,' the correct statement would be 'Rigel is hotter than Betelgeuse.'