GJ 504 b is a gas giant, around 4-5 times the mass of Jupiter and 1.2 times larger in diameter. This makes it one of the larger exoplanets discovered.279,644 Km approximate Radius.

Located 57 light years away from Earth in the Virgo constellation, GJ 504 b is relatively close in galactic terms.

As a gas giant, GJ 504 b doesn’t have a solid surface. It’s still young and glowing with heat from its formation, giving it a pinkish hue. This is a unique trait since most older planets have cooled down significantly.

The planet is composed mostly of hydrogen and helium, similar to Jupiter. It likely has a dense, rocky core surrounded by layers of metallic hydrogen due to the high pressure inside the planet.

GJ 504 b is one of the youngest exoplanets to be directly imaged by astronomers. The direct imaging and its rare pinkish glow make this planet a standout discovery. Scientists believe studying it can help understand the early development of giant planets.

GJ 504 b was discovered in 2013 using direct imaging, which means astronomers captured actual pictures of the planet. This method is rare since most exoplanets are too far and dim to be directly observed. GJ 504 b was imaged by the Subaru Telescope in Hawaii, which is equipped with advanced optics capable of isolating faint objects like exoplanets from the glare of their parent stars. Direct imaging allowed scientists to study the planet’s light and estimate its temperature, which led to the discovery of its pinkish glow.