GJ 504 b is a very friendly planet who loves to meet others and make new friends like Earth. She is a pinkish planet because of her temperature. She is also one of the largest jovians (4x more massive than Jupiter). GJ 504 b is pink because at 460°F, it's the temperature of a hot oven, and it's her intense heat that causes her to glow. The sky turns a hazy pink as you enter into her atmosphere.