Does planet9 exist?
Unless Planet Nine is observed, its existence is purely conjectural. Several alternative hypotheses have been proposed to explain the observed clustering of trans-Neptunian objects (TNOs)….Planet Nine.
| Orbital characteristics | |
|---|---|
| Mass | 6.3 +2.3 −1.5 M Earth |
| Apparent magnitude | ~21 |
Will a planet collide with Earth?
NASA knows of no asteroid or comet currently on a collision course with Earth, so the probability of a major collision is quite small. In fact, as best as we can tell, no large object is likely to strike the Earth any time in the next several hundred years.
How big is planet9?
They estimate Planet Nine to be about 6.2 Earth masses, with an orbit that takes it from 300 astronomical units (AU, with 1 AU being the distance from Earth to the sun) out to 380 AU from the sun. Planet Nine’s orbital inclination, or how much it tilts away from the plane of the solar system, is around 16 degrees.
What is the fake planet?
Today, the International Astronomical Union has reserved the name “Vulcan” for the hypothetical planet, even though it has been ruled out, and also for the Vulcanoids, a hypothetical population of asteroids that may exist inside the orbit of the planet Mercury.
Is there a planet beyond Pluto?
What is beyond Pluto? There are at least eight more dwarf planets beyond Pluto and Neptune. They include Eris, a little bigger than Pluto, which has its own small moon. There is Haumea, Sedna, Orcus, Quaoar, Varuna, and Makemake.
Where is Pluto in the solar system?
RA 19h 59m 2s | Dec -22° 28′ 59″Pluto / Coordinates