Astronomy Seeds Backman
how can jupiter emit more heat than it recieves from the sun?
Okay so i read that Jupiter is almost entirely a liquid planet in my Horizons book by Michael A Seeds and Dana E Backman. However many people are stating online that it is a gaseous planet?… Can anyone explain to me this? And in any case my true question lies in the title. My astronomy book does not explain this. Please site the source to your answer, thank you!
Jupiter has a planetary magnetic field that is as much as 20,000 times stronger than Earth’s magnetic field is, which is kind of puny when compared to the magnetic fields of all the Jovian planets. In order to have a magnetic field, a planet has to have a molten iron/nickel core and relatively rapid rotation to maintain the magnetic dynamo of convection currents of the outer liquid core. Venus very likely has a molten outer core, because there are indications of plate tectonics, but the rotation rate so low that if Venus has a planetary magnetic field, it’s so small that our instruments can barely register it.. Mars, the moon, and very likely Pluto, no longer have global magnetic fields because the molten core has cooled off and crystallized over billions of years. Mars has almost 6 times the mass that Pluto has, If Pluto has a planetary geomagnetic field, I’ll be intrigued, because the next questions are “Why” and “how is that magnetic field generated and maintained?” For the people who claim that Jupiter has a metallic hydrogen core that generates the magnetic field, that doesn’t work, because of electron degeneracy in liquid and solid hydrogen.
Jupiter generates more heat than it receives from the sun because it has a molten iron/nickel/sulfur outer core. So do the other gas giants. This means that the formation of all the planets in out solar system was similar for all the planets and dwarf planets. In the case of the three planets with retrograde rotation, Venus, Uranus and Pluto, is it so unreasonable for three out nine planets to have been impacted massive impacts of meteors and asteroids over billions of years for the impacts to have flipped the rotational axes of 33.33333% of the planets in the solar system? (I’m not going to get into a debate about whether Pluto is a planet or not. DWARF planet is still a PLANET.)
Jupiter also has a 400 year old hurricane (the Great Red spt) and a radio source that rotates in the same period as one of the belts or zone do. a
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Foundations of Astronomy $59.45 NA… |
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Horizons: Exploring the Universe $115.83 With their best-selling astronomy textbook, HORIZONS, authors Mike Seeds and Dana Backman help you understand your place in the universe–not just your location in space but your role in the unfolding history of the physical universe. To achieve this goal, they focuses on two central questions: “What Are We?” which highlights your place as a planet dweller in an evolving universe, guiding you to b… |
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Horizons: Exploring the Universe, 11th Edition $64.95 With their best-selling astronomy textbook, HORIZONS, authors Mike Seeds and Dana Backman help you understand your place in the universe-not just your location in space, but your role in the unfolding history of the physical universe. To achieve this goal, they focuses on two central questions: “What Are We?,” which highlights your place as a planet dweller in an evolving universe, guiding you to … |
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