51 Pegasi b Coloring Page
51 Pegasi b stands out among the first exoplanets discovered. It’s about half the mass of Jupiter, with a star-hugging orbit that means its “year” is only 4.2 Earth days! It is the first planet confirmed to orbit a Sun-like star, and it ushered in a new class of planets called “Hot Jupiters”: massive planets orbiting extremely close to their stars. What colors would light up the first exoplanets discovered?