Tag Archives: solar system

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 1610 (though not published until 1613). Using a telescope, Galileo was able to observe Venus going through a full set of … Continue reading

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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 gravitational influence on the Earth, we would certainly notice if it started to move randomly.  The most noticeable effect of random … Continue reading

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What Can Radio Telescopes Measure?

Question: I have some questions about radio astronomy. If we build a planetary radio telescope, What data can we measure from the received signals other than listening to the noise of S-burst and  L-burst in a project like Radio JOVE?  … Continue reading

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What if the Sun did not turn into a Red Giant and the Moon moved out of its Orbit Around the Earth?

Question: What effects would we see on Earth if the Sun wouldn’t turn into a Red Giant? If the Moon would move away slowly until extracted from its orbit, would that, for example, affect Earth’s axis?  – Walle Answer: If … Continue reading

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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 naming conventions?  — Chuck Answer: The International Astronomical Union (IAU) maintains a web site which contains all of the information regarding … Continue reading

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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 planets have any effect on our sun?  – Vinod Answer:  Just as the Sun exerts a gravitational pull on the planets, … Continue reading

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Why Do the Planets Orbit in a Plane Parallel to the Spin Axis of the Sun?

Question:  Are orbits in our solar system really moving sideways around the sun instead of up and down around the sun? It’s a perspective/gravity/free-falling thing that’s hard for me to understand sideways.  – Jay Answer:  First, let me answer a … Continue reading

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Can Tornados Happen in Space?

Question:  Can tornados happen in space? Maybe solar winds can act like earth winds with currents and temperature changes?  – Jay Answer:  Although the interstellar medium within galaxies, or the gas and dust between stars (including the solar wind) can … Continue reading

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Positions of the Planets on any Date

Question:  I am making a sculpture to offer to my dad with planets position at 4 of july of 1930, his day of birth. Can you help me and tell  where i can find it?  – Sérgio Answer:  There is … Continue reading

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The Earth-Moon Spin-Orbit Resonance

Question:  For being a chunk of Earth’s primordial matter the Moon is quite an amazing stellar feat…it orbits synchronously about the earth with an axis spin velocity 1/100 that of Earth and counterclockwise orbit equal in period as that of … Continue reading

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