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Astronomers say they have discovered what appears to be an entirely new kind of planet, an extra-large gas giant unlike any known world in our solar system or beyond. "This questions our understanding of how giant planets are formed and evolve," said Robert Noyes, a senior physicist at the Harvard-Smithsonian Center for Astrophysics (CfA). The planet, dubbed HAT-P-1, is located some 450 light-years from Earth in the constellation Lacerta. It is the largest planet ever discovered and boasts a radius nearly 1.4 times larger than Jupiter's. HAT-P-1 is also the least dense of all known planets. "This planet is about one quarter the density of water," said Gaspar Bakos, a Hubble fellow at CfA. "In other words, it's lighter than a giant ball of cork. Just like Saturn, it would float in a bathtub if you could find a tub big enough to hold it, but it would float almost three times higher." Unlike more familiar gas giants, including those in our solar system, HAT-P-1 does not appear to have a solid core. The planet's large size and low density can't be explained by current theories of giant planet formation. Scientists suggest that additional heat in its interior could account for its "puffed-up" size, but as yet they can't explain how such heat could be generated.
What else can I help you with?
What planet is the largest object in the solar system?
The largest object in the solar system is not a planet. It is the Sun. The largest planet is Jupiter.
Is earth the largest plant in your solar system?
The largest planet in the solar system is Jupiter.
Which is the biggest planet out of our solar system?
Jupiter is the largest planet in our solar system.
What is the eighth largest planet in the solar system?
no it is not the 8th largest. Infact it is the 8th smallest or in other words it's the smallest
What is the third largest planet in space?
Uranus is the third largest planet in the solar system.
Which of the two is the largest planet in the solar system?
Jupiter is the largest planet in the solar system.
What planet is the largest object in the solar system?
The largest object in the solar system is not a planet. It is the Sun. The largest planet is Jupiter.
Is venus largest planet in our solarsystem?
No, Venus is not largest planet in our solar system. Jupiter is the largest planet in our solar system.
Is the earth is the largest planet in solar system?
The largest planet in the solar system is Jupiter.
Is earth the largest plant in your solar system?
The largest planet in the solar system is Jupiter.
What is the largest of your solar system?
The largest planet in the solar system is Jupiter.
Is the planet Saturn the largest planet?
No. Jupiter is the largest planet in our Solar System. Saturn is the second largest.
Is Jupiter the largest second largest or etc?
Jupiter is the largest planet in our solar system!
Is Earth the second largest or the third largest planet in our solar system?
No, Earth is the fifth largest planet in our solar system.
Is Jupiter a planet in the solar system?
Yes it is, the largest planet in our solar system.
Is Mars the largest planet in the solar system?
No. Jupiter is the largest planet in the solar system. Mars is the second smallest.
Is the sun the largest planet in your solar system?
The sun is a star, not a planet, though it is the largest object in the solar system.
