Which one among the following stars is nearest to the earth?

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Q: (CDS-I/2019)
Which one among the following stars is nearest to the earth?

question_subject: 

Geography

question_exam: 

CDS-I

stats: 

0,51,13,5,3,5,51

keywords: 

{'proxima centauri': [0, 0, 0, 1], 'sirius': [1, 1, 0, 1], 'stars': [0, 0, 0, 1], 'arcturus': [0, 0, 0, 1], 'earth': [0, 1, 1, 1], 'spica': [0, 0, 0, 1]}

The correct answer is option 4: Proxima Centauri. Proxima Centauri is the closest star to Earth, located in the constellation Centaurus. It is approximately 4.24 light-years away from us.

Option 1: Sirius is one of the brightest stars in the night sky, but it is not the nearest star to Earth. It is about 8.6 light-years away.

Option 2: Arcturus is a bright star in the constellation Boötes, but it is not the closest star to us. It is located about 37 light-years away.

Option 3: Spica is a binary star system in the constellation Virgo. It is relatively close to us but still not the nearest star. It is approximately 250 light-years away.

Therefore, the most accurate answer is option 4: Proxima Centauri. It is the closest star to Earth, making it the most accessible for future space explorations.