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Question
    You measure a star to have a parallax angle of 0.12 arc-seconds. What fraction of a degree is this?

By how many times would you have to magnify this effect for it to be visible to the human eye? (The limit of human vision is about 1 arc-minute)

What is the distance to this star in parsecs?

What is the distance to this star in light years

What is the parallax angle of a different star that is twice as far away as the star from the previous problems? [answer in arc-seconds without including the unit]

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