How did we discover planet 9?
The talk of Planet Nine first emerged in January 2015 when a duo of astronomers from the California Institute for Technology (Caltech) suggested that a Neptune-sized planet orbits our Sun in a highly elongated orbit that lies far beyond Pluto.
What is the possible planet nine?
Planet Nine is a hypothetical giant planet that might be orbiting the Sun somewhere beyond Pluto. Its presence is one possible explanation for the weird way a handful of small icy objects in the outskirts of the solar system seem to cluster into very similar orbits.
Who invented 9 planets?
Five planets have been known since ancient times — Mercury, Venus, Mars, Jupiter, and Saturn. The first new planet discovered was Uranus. It was discovered by the English astronomer Sir William Herschel in 1781….
| PLANET | DIST. FROM SUN (A.U.) | ORBIT PERIOD (EARTH-YEARS) |
|---|---|---|
| Neptune | 30.11 | 164.79 |
| Pluto | 39.44 | 248.5 |
What happened to the 9th planet?
In 2006 the International Astronomical Union (IAU) demoted the much-loved Pluto from its position as the ninth planet from the Sun to one of five “dwarf planets.” The IAU had likely not anticipated the widespread outrage that followed the change in the solar system’s lineup. Why is Pluto no longer a planet?
Is there a Hidden “Planet 9” in the Solar System?
Planet Nine (illustrated) is a hypothetical giant planet hiding at the solar system’s edge – but new work suggests the evidence for it is a mirage. Planet Nine might be a mirage. What once looked like evidence for a massive planet hiding at the solar system’s edge may be an illusion, a new study suggests.
What is the evidence for Planet 9?
The evidence for Planet Nine was unveiled by Caltech scientists Mike Brown (at left, a prolific Kuiper Belt object hunter) and Konstantin Batygin. The duo used mathematical models and computer simulations to map out Planet Nine’s orbit after spotting a strange alignment in the orbits of six other Kuiper Belt objects.
Does planet Nine really exist?
Unless Planet Nine is observed, its existence is purely conjectural. Several alternative hypotheses have been proposed to explain the observed clustering of TNOs. One hypothetical path through the sky of Planet Nine near aphelion crossing Orion west to east with about 2,000 years of motion.
Is there a 9th planet?
There might be a ninth planet in the solar system after all, and it is not Pluto. Two astronomers reported on Wednesday that they had compelling signs of something bigger and farther away — something that would satisfy the current definition of a planet, where Pluto falls short.