How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

OF201, the object belongs to the same all-star family as Pluto: dwarf planets. Its diameter, roughly 435 miles (700 km), is half Pluto’s, ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

In a significant breakthrough, astronomers have detected a Pluto-like planet situated far beyond the known boundaries of the solar system. Identified as 2017 OF201, the icy celestial body may ...

The potential planet, which has been temporarily called 2017 OF201, takes "more than 24,000 years to travel around the sun just once along a highly elliptical orbit, coming as close as 4.2 billion ...

Researchers found a ‘planet’ smaller than Pluto A new planetary body named 2017 OF201 was identified by a team of researchers from the Institute of Advanced Study in New Jersey and later confirmed by ...

Named 2017 OF201, the new object is roughly 430 miles across, according to a preprint study, making it three times smaller than Pluto.

In other words, 2017 OF201 likely would not be able to remain if Planet Nine does exist. But Yang said more research is needed, and the discovery of the new dwarf planet candidate is not ...

2017 OF201’s elongated orbit makes it an outlier from the clustered objects, but Yang’s calculations suggest that the orbit of 2017 OF201 should remain stable over roughly the next billion years.

The mass of 2017 OF201 is estimated to be about 20,000 times smaller than Earth’s and 50 times smaller than Pluto’s. Swipe. Select. Stay informed. “We don’t know the shape yet.