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Planet Nine is a hypothetical ninth planet in the outer region of the Solar System. [2] [4] Its gravitational effects could explain the peculiar clustering of orbits for a group of extreme trans-Neptunian objects (ETNOs), bodies beyond Neptune that orbit the Sun at distances averaging more than 250 times that of the Earth i.e. over 250 astronomical units (AU).
The orbits of Sedna, 2012 VP 113, Leleākūhonua, and other very distant objects along with the predicted orbit of Planet Nine [A]. An extreme trans-Neptunian object (ETNO) is a trans-Neptunian object orbiting the Sun well beyond Neptune (30 AU) in the outermost region of the Solar System.
In January 2016, Brown and fellow Caltech astronomer, Konstantin Batygin, proposed the existence of Planet Nine, a major planet between the size of Earth and Neptune. [11] The two astronomers gave a recorded interview in which they described their method and reasoning for proposing Planet 9 on January 20, 2016.
Planet nine may be orbiting far from the Sun, at the edge of our solar system. Astronomers, seeing odd irregularities in the orbits of the outer planets suspect another, unknown, planet may orbit ...
The hypothetical Planet Nine would modify the orbits of extreme trans-Neptunian objects via a combination of effects. On very long timescales exchanges of angular momentum with Planet Nine cause the perihelia of anti-aligned objects to rise until their precession reverses direction, maintaining their anti-alignment, and later fall, returning them to their original orbits.
The two kindergarten students who were wounded in a school shooting in the Northern California community of Palermo remain in critical condition after a successful surgery on Friday, the Butte ...
Tips For Making The Best Christmas Morning Breakfast. Keep pancakes warm in the oven if cooking for a crowd.Place pancakes on a baking sheet, on a wire rack, at around 200F in the oven until you ...
2014 SR349 at NeoDyS-2, Near Earth Objects—Dynamic Site. Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation; 2014 SR349 at ESA–space situational awareness. Ephemerides · Observations · Orbit · Physical properties · Summary