New Dwarf Planet Discovered Far Beyond Pluto's Orbit

Message boards : Science (non-SETI) : New Dwarf Planet Discovered Far Beyond Pluto's Orbit
Message board moderation

To post messages, you must log in.

AuthorMessage
Profile LynnProject Donor
Volunteer tester
Avatar

Send message
Joined: 20 Nov 00
Posts: 11814
Credit: 31,776,686
RAC: 31,070
United States
Message 1802143 - Posted: 11 Jul 2016, 21:24:32 UTC

This is not hypothetical Planet 9.

Pluto isn't quite as lonely as scientists had thought.

Astronomers have discovered another dwarf planet in the Kuiper Belt, the ring of icy objects beyond Neptune. But this newfound world, dubbed 2015 RR245, is much more distant than Pluto, orbiting the sun once every 700 Earth years, scientists said. (Pluto completes one lap around the sun every 248 Earth years.) You can see an animation of the new dwarf planet's orbit here.

http://www.space.com/33387-dwarf-planet-discovery-2015-rr245.html
ET Phone Home
ID: 1802143 · Report as offensive
Profile Kyle
Volunteer tester

Send message
Joined: 3 Oct 12
Posts: 7
Credit: 41,847
RAC: 0
United States
Message 1802270 - Posted: 13 Jul 2016, 0:25:08 UTC

Crazy stuff.
ID: 1802270 · Report as offensive
Profile LynnProject Donor
Volunteer tester
Avatar

Send message
Joined: 20 Nov 00
Posts: 11814
Credit: 31,776,686
RAC: 31,070
United States
Message 1808609 - Posted: 11 Aug 2016, 22:39:21 UTC - in response to Message 1802270.  

Something beyond Neptune??

Is there another world lurking beyond Neptune? Strange orbit of new minor planet hints at mysterious object in the outer reaches of our solar system

For a few years now, astronomers have been detecting hints that there may be a mysterious planet lurking undetected in some of the farthest reaches of our solar system.

But a new study suggests there may be a great deal more going on in the cold, dark regions of space beyond the eighth planet orbiting our sun, Neptune.

Scientists have discovered a bizarre new object, less than 124 miles (200km) across, with a strange tilted orbit that sends it high above the flat orbital disk of the rest of the solar system.

http://www.dailymail.co.uk/sciencetech/article-3734507/Is-world-lurking-Neptune-Strange-orbit-new-minor-planet-hints-mysterious-object-outer-reaches-solar-system.html#ixzz4H4535jLw
ET Phone Home
ID: 1808609 · Report as offensive
Profile janneseti
Avatar

Send message
Joined: 14 Oct 09
Posts: 14106
Credit: 655,366
RAC: 1
Sweden
Message 1808614 - Posted: 11 Aug 2016, 23:31:24 UTC - in response to Message 1808609.  
Last modified: 11 Aug 2016, 23:43:52 UTC

Scientists have discovered a bizarre new object, less than 124 miles (200km) across, with a strange tilted orbit that sends it high above the flat orbital disk of the rest of the solar system.

Niku was found to orbit 110 degrees off the orbital plane of the solar system?
Makes no sense to me.
An orbit can only be between +- 90 degrees off an orbital plane.

Pluto has an orbit that is above the orbital disk as well.
By 17 degrees.
ID: 1808614 · Report as offensive
rob smithProject Donor
Volunteer tester

Send message
Joined: 7 Mar 03
Posts: 15192
Credit: 251,066,840
RAC: 321,346
United Kingdom
Message 1808654 - Posted: 12 Aug 2016, 5:16:17 UTC

Ah, found a news item that explains it - the 110 degree tilt is used to indicate the object is orbiting in the wrong direction. That is to say its orbit is in the opposite direction to the majority of the other objects in the Solar system.
https://www.newscientist.com/article/2100700-mystery-object-in-weird-orbit-beyond-neptune-cannot-be-explained/
Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?
ID: 1808654 · Report as offensive
Profile janneseti
Avatar

Send message
Joined: 14 Oct 09
Posts: 14106
Credit: 655,366
RAC: 1
Sweden
Message 1808678 - Posted: 12 Aug 2016, 8:31:51 UTC - in response to Message 1808654.  

Ah, found a news item that explains it - the 110 degree tilt is used to indicate the object is orbiting in the wrong direction. That is to say its orbit is in the opposite direction to the majority of the other objects in the Solar system.
https://www.newscientist.com/article/2100700-mystery-object-in-weird-orbit-beyond-neptune-cannot-be-explained/

Hmmm.
So if Niku should be orbiting in the same direction as the other objects in the solar system the tilt would be 20 degrees.
I see, I think:)

Whatever.
That Niku is orbiting in an opposite direction is very remarkable.
The tilt is unrelevant.
ID: 1808678 · Report as offensive
Profile Sarge
Volunteer tester
Avatar

Send message
Joined: 25 Aug 99
Posts: 11343
Credit: 4,627,683
RAC: 4,758
United States
Message 1809478 - Posted: 15 Aug 2016, 23:26:05 UTC - in response to Message 1808678.  

Ah, found a news item that explains it - the 110 degree tilt is used to indicate the object is orbiting in the wrong direction. That is to say its orbit is in the opposite direction to the majority of the other objects in the Solar system.
https://www.newscientist.com/article/2100700-mystery-object-in-weird-orbit-beyond-neptune-cannot-be-explained/

Hmmm.
So if Niku should be orbiting in the same direction as the other objects in the solar system the tilt would be 20 degrees.
I see, I think:)

Whatever.
That Niku is orbiting in an opposite direction is very remarkable.
The tilt is unrelevant.


Perhaps try thinking negative 70 degrees north, something like that?
Capitalize on this good fortune, one word can bring you round ... changes.
ID: 1809478 · Report as offensive
Profile janneseti
Avatar

Send message
Joined: 14 Oct 09
Posts: 14106
Credit: 655,366
RAC: 1
Sweden
Message 1809665 - Posted: 16 Aug 2016, 14:59:26 UTC - in response to Message 1809478.  

Ah, found a news item that explains it - the 110 degree tilt is used to indicate the object is orbiting in the wrong direction. That is to say its orbit is in the opposite direction to the majority of the other objects in the Solar system.
https://www.newscientist.com/article/2100700-mystery-object-in-weird-orbit-beyond-neptune-cannot-be-explained/

Hmmm.
So if Niku should be orbiting in the same direction as the other objects in the solar system the tilt would be 20 degrees.
I see, I think:)
Whatever.
That Niku is orbiting in an opposite direction is very remarkable.
The tilt is unrelevant.

Perhaps try thinking negative 70 degrees north, something like that?

Yes perhaps:)
I think Rob have come up with the right answer.
One could imagine that Pluto would raise it's orbit to 90 degrees by some unknown force.
That's not so hard to grasp but if the force pull Pluto and lower it's orbit further on to 180 degrees there is no tilt at all.
The only difference is the orbital direction and that north becomes south on Pluto.
ID: 1809665 · Report as offensive
rob smithProject Donor
Volunteer tester

Send message
Joined: 7 Mar 03
Posts: 15192
Credit: 251,066,840
RAC: 321,346
United Kingdom
Message 1809677 - Posted: 16 Aug 2016, 20:48:57 UTC

I think it is more likely that Niku is in the process of being captured into Solar orbit, having come from somewhere else in the galaxy. This would explain the "wrong direction", and the strange inclination of its orbit. Obviously this process is "slow" in comparison to our observation period, but it would be fascinating to be able to come back in a few million years and see how its orbit had developed.
Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?
ID: 1809677 · Report as offensive
Profile Julie
Volunteer moderator
Volunteer tester
Avatar

Send message
Joined: 28 Oct 09
Posts: 33496
Credit: 12,328,228
RAC: 10,529
Belgium
Message 1810988 - Posted: 21 Aug 2016, 11:34:25 UTC

it would be fascinating to be able to come back in a few million years and see how its orbit had developed.


Wouldn't it? Thanx for the interesting links, Lynn!
rOZZ
Music
Pictures
ID: 1810988 · Report as offensive
Profile LynnProject Donor
Volunteer tester
Avatar

Send message
Joined: 20 Nov 00
Posts: 11814
Credit: 31,776,686
RAC: 31,070
United States
Message 1826606 - Posted: 25 Oct 2016, 0:21:37 UTC - in response to Message 1810988.  

What's Up with 'Niku'? Object's Weird Orbit Puzzles Scientists

A mysterious object in the outer reaches of the solar system is revolving around the sun in an abnormal way, and scientists currently cannot explain why.

The object has been nicknamed Niku, a Chinese adjective that means "rebellious," by the group of researchers who announced its discovery in August. This name was chosen because the object's orbit is retrograde, meaning it moves in the opposite direction of nearly everything else in the solar system.

http://www.space.com/34479-niku-weird-objects-orbit-puzzles-scientists.html
ET Phone Home
ID: 1826606 · Report as offensive

Message boards : Science (non-SETI) : New Dwarf Planet Discovered Far Beyond Pluto's Orbit


 
©2017 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.