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Q.

Which is the brightest star in the southern constellation of Centaurus and the third brightest star in the night sky?

 A.

Leo

 B.

Crab Nebula

 C.

Alpha Centurai

 D.

Omicron Velorum

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Solution:
Option(C) is correct

Alpha Centauri or Toliman, is the brightest star in the southern constellation of Centaurus and the third brightest star in the night sky.

The Alpha Centauri system is located 1.34 parsecs or 4.37 light years from the Sun, making it the closest star system to our Solar System.

Although it appears to the unaided eye as a single object, Alpha Centauri is actually a binary star system  whose combined visual magnitude of −0.27 makes it the third brightest star seen from Earth after the −1.46 magnitude Sirius and the −0.72 magnitude Canopus.


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