How does a hot Jupiter differ from Jupiter?

Hot Jupiters are a class of gas giant exoplanets that are inferred to be physically similar to Jupiter but that have very short orbital periods (P < 10 days). The close proximity to their stars and high surface-atmosphere temperatures resulted in the moniker “hot Jupiters”.

What is the best explanation for hot Jupiters?

What’s the best explanation for the location of hot Jupiters? They formed farther out like Jupiter but then migrated inward.

What are hot Jupiters composed of?

Gas giants, like Jupiter or Saturn in our solar system, are composed mostly of helium and/or hydrogen. Gas giants nearer to their stars are often called “hot Jupiters.” More variety is hidden within these broad categories.

How do we think hot Jupiters formed Why didn’t one form in our solar system?

How do we think hot Jupiters formed? Hot Jupiters formed beyond the frost line, as in our solar system, and migrated inward due to interaction with the solar nebula. Why didn’t one form in our solar system? Because the nebula must have dispersed shortly after the formation of our jovian planets.

How does a hot Jupiter differ from Jupiter quizlet?

How does a hot Jupiter differ from Jupiter? It’s much closer to its star. The nebular theory predicts that jovian planets should only form at much larger distances from their stars.

How common are hot Jupiters?

Hot Jupiters are giant planets that orbit very close to their host star, typically less than one-tenth the distance between Earth and the Sun. They are found in about 1 percent of systems. Since their initial discovery in the 1990s, astronomers have wondered how these strange planets got to where they are today.

How hot is the Jupiter?

It is estimated that the temperature of the cloud tops are about -280 degrees F. Overall, Jupiter’s average temperature is -238 degrees F.

How do we think the hot Jupiters around other stars were formed quizlet?

How do we think the “hot Jupiters” around other stars were formed? They formed as gas giants beyond the frost line and then migrated inwards. The gas in the solar nebula would create a drag on the planets and their orbits would migrate inwards.

Why is our Jupiter not a hot Jupiter quizlet?

Why is our Jupiter not a “hot Jupiter”? It is likely that in our system the nebular gas cleared out before it could have much migratory effect on the planet. How much brighter is a Sun-like star than the reflected light from a planet orbiting around it? big planets in edge-on orbits around small stars.

Is Jupiter hotter than the Sun?

The temperature in the clouds of Jupiter is about minus 145 degrees Celsius (minus 234 degrees Fahrenheit). The temperature near the planet’s center is much, much hotter. The core temperature may be about 24,000 degrees Celsius (43,000 degrees Fahrenheit). That’s hotter than the surface of the sun!

How hot is the hottest part of Jupiter?

At the top of the atmosphere, temperatures can reach as high as 1,340 F (725 C), over 600 miles (1,000 kilometers) above the planet’s surface.

What is the hottest hot Jupiter?

With a dayside temperature of more than 7,800 degrees Fahrenheit (4,600 Kelvin), KELT-9b is a planet that is hotter than most stars. But its star, called KELT-9, is even hotter — a blue A-type star that is likely unraveling the planet through evaporation.