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For questions number 76-77, read the text below and decide which answer best fit according to the text.
Alpha Centauri is a triple-star system. One of the three stars in Alpha Centauri is Proxima Centauri, which is the nearest star to the Earth, except of course for the Sun. The name “Proxima” comes from a Latin word which means “close.”
Even though Proxima Centauri is the closest star to the Earth outside of our solar system, it is not really close. Interstellar distances are so large that they are almost impossible to imagine. A person traveling in a modern spacecraft would not arrive at Proxima Centauri within this lifetime or the next, or even ten lifetimes because the distance is so great. Light travels at a speed of 186,000 miles per second, and it still takes light more than four years to travel from Proxima Centauri to the Earth.
Alpha Centauri can be easily seen in the night sky without a telescope from certain parts of the Earth. It is the third brightest star in the sky, out of approximately 6,000 visible stars. It cannot be seen from most parts of the United States because most of the United States is too far north; however; it can be seen from the southern parts of the southernmost states.
It can be inferred from the passage that from Alaska, Alpha Centauri is …
always visible.
frequently visible.
occasionally visible.
never visible.
sometimes invisible.
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A. Setyawan
Master Teacher
Mahasiswa/Alumni Universitas Sebelas Maret
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