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Solar System

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Why Can’t Venus be Fully Lit by the Sun in the Ptolemaic System?

Question: The first known observations of the full planetary phases of Venus were by Galileo at the end of…

What if the Moon Moved Randomly in its Orbit?

Question: What will happen if the moon moves randomly?  — Ahmed Answer: Since the Earth’s Moon is an important…

What Can Radio Telescopes Measure?

Question: I have some questions about radio astronomy. If we build a planetary radio telescope, What data can we…

Location of a List of Solar System Objects and Their Naming Conventions?

Question: Simple question.  What is the website address that I may gain access to the recorded bodies and there…

Why isn’t the Precession of the Lunar Nodes Uniform with Time?

Question: I am an amateur naked eye astronomer.  I teach astronomy to 6th graders, I read a lot on…

Do the Planets Have a Physical Effect on the Sun?

Question:  We know that our sun has a profound impact on all planets in our solar system. But, does…

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The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
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