Porchavor (star)

Porchavor (star)
The Porchavor is a star located 1 light year away from the planet. It's mostly known for being a very visible star and for that is also known to change colors slowly over a minute. In 40781 days the star has changed to every single color that exists at least once, so from day 1 being green it would be green again in 40781(.something) days. Why the Porchavor changes color is unknown.