Astronomy Basics: Universe and Celestial Bodies
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Astronomy Basics: Universe and Celestial Bodies

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Questions and Answers

What is the astronomical unit of time as defined in astronomy?

Day

Which organization adopted the astronomical system of units in 1976?

International Astronomical Union (IAU)

What is the main focus of astronomy as stated in the text?

Study of the universe and celestial bodies

How many Julian days make up one year?

<p>365.25 days</p> Signup and view all the answers

What does the astronomical unit of mass represent?

<p>Solar Mass</p> Signup and view all the answers

How is the universe defined in the text?

<p>Sum total of all matter and energy that exists or has existed both in space and time</p> Signup and view all the answers

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