Pink planet is called by that name because it glows in dark magenta colour !!!
Here is a quick rundown ------
1. It is a planetary mass companion orbiting the Sun like Star .
2. Astronomers still aren't sure if it is a giant exoplanet or a brown dwarf.
3. It is still glowing from the heat left over from formation.
4. It is having deep clouds made of salt in its atmosphere.
5. Its atmosphere contains water vapour, CO2, methane and ammonia.
6. Its one of the coldest planetary mass companion.
7. Its a huge, hot, pink gas world with salty clouds.