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Q: Which one of the following is the brightest star in the Orion Constellation? (a)
  • A. Eta Orionis
  • B. Betelgeuse
  • C. Alnilam
  • D. Rigel
Correct Answer: Option D - Orion's brightest star, Rigel, located in the hunter's leg, has a magnitude of 0.12 and is the seventh brightest star in the sky. The third brightest star in the constellation is Bellatrix. Orion's girdle, or belt consisting of three bright stars, lies nearly on the celestial equator.
D. Orion's brightest star, Rigel, located in the hunter's leg, has a magnitude of 0.12 and is the seventh brightest star in the sky. The third brightest star in the constellation is Bellatrix. Orion's girdle, or belt consisting of three bright stars, lies nearly on the celestial equator.

Explanations:

Orion's brightest star, Rigel, located in the hunter's leg, has a magnitude of 0.12 and is the seventh brightest star in the sky. The third brightest star in the constellation is Bellatrix. Orion's girdle, or belt consisting of three bright stars, lies nearly on the celestial equator.