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What Is Planet Nine, And Does It Even Exist?

SCIENCEALERT STAFF
Planet Nine - also referred to as Planet X - is a massive, hypothetical object in an elliptical orbit far beyond Pluto, roughly at a distance that would take 10,000 to 20,000 Earth years for it to complete a single trip around the Sun.

Though no direct observations have ever been made of an object fitting the description of Planet Nine, unexpected patterns in the orbits of other, smaller objects in the icy outer reaches of the Solar System could be explained by the gravitational pull of such a body.
In early 2016, California Institute of Technology astronomers Mike Brown (famed for his role in demoting Pluto from its rank as the ninth planet in 2005) and Konstantin Batygin announced their observation of dwarf planet 2012 VP113 s orbit lining up uncannily well with the orbits of five other extreme trans-Neptunian objects. ....

Konstantin Batygin , Mike Brown , California Institute Of Technology , Solar System Origins , Planet Nine , Solar System , California Institute , Outer Solar System Origins Survey , மைக் பழுப்பு , கலிஃபோர்னியா நிறுவனம் ஆஃப் தொழில்நுட்பம் , சூரிய அமைப்பு ஆரிஜிந்ஸ் , கிரகம் ஒன்பது , சூரிய அமைப்பு , கலிஃபோர்னியா நிறுவனம் , ஔடர் சூரிய அமைப்பு ஆரிஜிந்ஸ் கணக்கெடுப்பு ,

Searching for Planet 9 and where new research fits into the overall existence of a theoretical super-Earth beyond Neptune

Searching for Planet 9 and where new research fits into the overall existence of a theoretical super-Earth beyond Neptune
February 24, 2021
In large part, it is impossible to have escaped notice of a rather large debate swirling in the planetary community around a theorized super-Earth planet in the outer reaches of our solar system, the existence of which could be one possible explanation to several oddities observed in a very dynamic part of our galactic home.
So where does current research, distant solar system observations, and searches for the theoretical super-Earth, known both as Planet 9 or Planet X, reside?
To start, a brief history. The first proposals regarding the current Planet 9 candidate stemmed from a prolonged series of observations of extreme trans-Neptunian objects, or eTNOs. These are small rocky objects whose orbits are well beyond that of Neptune’s and have a semi-major axis (average orbital distance) of 150-250 AU (Astronomical Units, ....

United States , Vera Rubin , Konstantin Batygin , Kevin Napier , Mike Brown , Juliette Becker , Dark Energy , Solar System Origins , Planetary Sciences , Division Of Geological , University Of Michigan , Trans Neptunian Objects , Astronomical Units , Planetary Science , Orbital Clustering , Extreme Trans Neptunian , Dark Energy Survey , Outer Solar System Origins Survey , Wiki Creative Commons , Tali Khain , Planet Nine , Vera Rubin Observatory , Hubble Space Telescope , ஒன்றுபட்டது மாநிலங்களில் , வேரா ரூபின் , கெவின் நேப்பியர் ,

Signs of a hidden Planet Nine in the solar system may not hold up

February 22, 2021 at 6:00 am
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.
“We can’t rule it out,” says Kevin Napier, a physicist at the University of Michigan in Ann Arbor. “But there’s not necessarily a reason to rule it in.”
Previous work has suggested that a number of far-out objects in the solar system cluster in the sky as if they are being shepherded by an unseen giant planet, at least 10 times the mass of Earth. Astronomers dubbed the invisible world Planet Nine or Planet X. ....

Ann Arbor , United States , Samantha Lawler , Tchad Trujillo , Konstantin Batygin , Kevin Napier , Gary Bernstein , Mike Brown , Scott Sheppard , Northern Arizona University , University Of Michigan , Carnegie Institution For Science , Dark Energy , University Of Pennsylvania , University Of Regina , Solar System Origins , Planet Nine , Planetary Science , Carnegie Institution , Dark Energy Survey , Outer Solar System Origins Survey , Vera Rubin Observatory , ஆண்டு ஆர்பர் , ஒன்றுபட்டது மாநிலங்களில் , சமந்தா சட்டத்தரணி , சாட் ட்ருஜிலோ ,

New Explanation for Planet Nine Looks to the Extreme

New Explanation for Planet Nine Looks to the Extreme
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United States , Konstantin Batygin , Kevin Napier , Michael Brown , Dark Energy , Dark Energy Survey , Solar System Origins , University Of Michigan , Planet Nine , Extreme Trans Neptunian Objects , Outer Solar System Origins Survey , Blanco Telescope , Canada France Hawaii Telescope , Science Magazine , ஒன்றுபட்டது மாநிலங்களில் , கெவின் நேப்பியர் , மைக்கேல் பழுப்பு , இருள் ஆற்றல் , இருள் ஆற்றல் கணக்கெடுப்பு , சூரிய அமைப்பு ஆரிஜிந்ஸ் , பல்கலைக்கழகம் ஆஃப் மிச்சிகன் , கிரகம் ஒன்பது , ஔடர் சூரிய அமைப்பு ஆரிஜிந்ஸ் கணக்கெடுப்பு , ப்ளான்க்கோ தொலைநோக்கி , கனடா பிரான்ஸ் ஹவாய் தொலைநோக்கி , அறிவியல் பத்திரிகை ,