"Astronomers have found a planet whose skies are illuminated by four different suns - the first known of its type.
The distant world orbits one pair of stars which have a second stellar pair revolving around them.
The discovery was made by volunteers using the Planethunters.org website along with a team from UK and US institutes; follow-up observations were made with the Keck Observatory.
A report on the Arxiv server has been submitted to the Astrophysical Journal.
The planet, located just under 5,000 light-years away, has been named PH1 after the Planet Hunters site.
It is thought to be a "gas giant" slightly larger than Neptune - more than six times the radius of the Earth."