Planet Nine could be a Super Earth orbiting at 400 astronomical units

Planet Nine could be a Super Earth

---

It has been a long-running debate amongst the astronomers whether our solar system consists of a ninth planet. Known as "Planet Nine," a team of researcher from Caltech has claimed that an unseen planet exists in the solar system based on the movement of other objects. In their latest papers, the astronomers have discussed the existence of the Planet Nine.


A Super Earth is an extrasolar planet. Planet Nine is believed to be approximately five times the mass of Earth, in a mildly eccentric orbit with a period of about 10,000 years.

A new paper published in the journal Physics Reports says that if Planet Nine really exists, it could probably be five to 10 times the size of the Earth, travelling along an elongated orbit that peaks at 400 times the Earth's distance from the sun. It is also likely that the orbit is 15 to 25 degrees off the main orbital plain of the solar system.

---

Planet Nine could be a Super Earth