All About Space

How does WASP-12b compare to Jupiter?

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It may be a hot Jupiter, but there are some difference­s to the

planetary king

WASP-12b

More enormous WASP-12b is 80

per cent larger than Jupiter, with a radius of 125,140 km

(77,758 miles).

Tight-knit orbit

WASP-12b orbits 3,440,000 kilometres (2,140,000 miles) from its stellar host, less than half a per

cent of Jupiter’s more-distant orbit.

Losing its mass

The host star is pulling material off WASP-12b at a rate of ten millionths of Jupiter’s mass

per year.

Reflecting barely any light

With an incredible

low albedo of 0.064, this means that 94 per cent of the visible light

is absorbed.

Scorching temperatur­es

JUPITER

King of the Solar System Jupiter is our Solar System’s biggest planet, with a radius of 69,911 kilometres (43,440 miles).

Far-flung world

Jupiter is the fifth planet from the Sun, it sits five times further away from the Sun than Earth does.

Freezing clouds

Jupiter’s cloud temperatur­e is at a freezing cold minus 145 degrees Celsius (minus 229 degrees Fahrenheit).

Keeping its mass

As Jupiter sits incredibly far away from the Sun, it is not losing any mass due to a low intensity gravitatio­nal pull.

Reflective giant

Jupiter has an albedo of 0.343, which is five times more reflective than WASP-12b.

 ??  ?? The super-hot WASP-12b is 2,242 degrees Celsius (4,069 degrees
Fahrenheit).
The super-hot WASP-12b is 2,242 degrees Celsius (4,069 degrees Fahrenheit).

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