We use Amazon Associate links to help support the site and the work we do.

The Million-Year Year

2MASS J2126-8140

Astronomers have discovered the largest known solar system, consisting of a large planet that takes nearly a million years to orbit its star. The gas giant is one trillion kilometres away, making its orbit 140 times wider than Pluto’s path around our Sun.

Only a handful of extremely wide pairs of this kind have been found in recent years. Details appear in the Monthly Notices of the Royal Astronomical Society. The planet, known as 2MASS J2126-8140, is between 12 and 15 times the mass of Jupiter.

“We were very surprised to find such a low-mass object so far from its parent star,” said Dr Simon Murphy from the Australian National University (ANU). “There is no way it formed in the same way as our solar system did, from a large disc of dust and gas.” This system is nearly three times the size of the previous widest star-planet pair.

Full Story at BBC News

close

Join Our Newsletter List, Get 4 Free Books

To view our privacy and other policies, Click Here
Please consider also subscribing to the newsletters of the authors who are providing these free eBooks to you. We are only able to offer them through the generosity of these QSF authors. You can always unsubscribe at a later date if you don't find anything of interest to you.
Once you submit this form, check your inbox to confirm this addition if you joined our newsletter list.

Leave a Comment