Google Play icon

Finding a ‘lost’ planet, about the size of Neptune

Share
Posted March 30, 2017

Yale astronomers have discovered a “lost” planet that is nearly the size of Neptune and tucked away in a solar system 3,000 light years from Earth.

An artist’s rendering of Kepler-150 f. Illustration by Michael S. Helfenbein

The new planet, Kepler-150 f, was overlooked for several years. Computer algorithms identify most such “exoplanets,” which are planets located outside our solar system. The algorithms search through data from space mission surveys, looking for the telltale transits of planets orbiting in front of distant stars.

But sometimes the computers miss something. In this case, it was a planet in the Kepler-150 system with a long orbit around its sun. Kepler-150 f takes 637 days to circle its sun, one of the longest orbits for any known system with five or more planets.

The Kepler Mission found four other planets in the Kepler-150 system — Kepler-150 b, c, d, and e — several years ago. All of them have orbits much closer to their sun than the new planet does.

“Only by using our new technique of modeling and subtracting out the transit signals of known planets could we then actually see it for what it really was,” said Joseph Schmitt, a graduate student at Yale and lead author of a new paper in The Astronomical Journal describing the planet. “Essentially, it was hiding in plain sight in a forest of other planetary transits.”

Co-authors of the study are Yale astronomy professor Debra Fischer and Jon Jenkins of NASA’s Ames Research Center.

Source: Yale University

Featured news from related categories:

Technology Org App
Google Play icon
85,387 science & technology articles

Most Popular Articles

  1. New treatment may reverse celiac disease (October 22, 2019)
  2. "Helical Engine" Proposed by NASA Engineer could Reach 99% the Speed of Light. But could it, really? (October 17, 2019)
  3. New Class of Painkillers Offers all the Benefits of Opioids, Minus the Side Effects and Addictiveness (October 16, 2019)
  4. The World's Energy Storage Powerhouse (November 1, 2019)
  5. Plastic waste may be headed for the microwave (October 18, 2019)

Follow us

Facebook   Twitter   Pinterest   Tumblr   RSS   Newsletter via Email