Is Planet 9 really needed?

A new dwarf planet discovery might destroy the possibility of Planet 9's
existence. Ironically, this new planet was discovered while searching
for Planet 9. It doesn't fit into the model of planets that have been
discovered until now, which seemed to align up in a certain way. The new
planet doesn't fit the existing model, and in fact if this planet has to
exist, then Planet 9 can't exist, because P9 would've thrown this planet
out of the Solar System in this position.

http://www.dailymail.co.uk/sciencete...n-t-exist.html

In fact this Youtube video, attempts to model this new planet and how it
would be affected by Planet 9.

https://youtu.be/0qA5cJDRdm4

Yousuf Khan

In article ,
Yousuf Khan writes:
A new dwarf planet discovery might destroy the possibility of Planet 9's
existence.

The preprint describing the new work is at
https://arxiv.org/abs/1704.01952

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On 5/1/2017 6:14 PM, Steve Willner wrote:
In article ,
Yousuf Khan writes:
A new dwarf planet discovery might destroy the possibility of Planet 9's
existence.

The preprint describing the new work is at
https://arxiv.org/abs/1704.01952

Do you think this is pretty definitive, and it ruins the chances of
having a Planet 9, or there is still a possibility for a Planet 9,
perhaps along a different axis?

Yousuf Khan

On 4/27/2017 8:59 PM, Yousuf Khan wrote:
A new dwarf planet discovery might destroy the possibility of Planet 9's
existence. Ironically, this new planet was discovered while searching
for Planet 9. It doesn't fit into the model of planets that have been
discovered until now, which seemed to align up in a certain way. The new
planet doesn't fit the existing model, and in fact if this planet has to
exist, then Planet 9 can't exist, because P9 would've thrown this planet
out of the Solar System in this position.

http://www.dailymail.co.uk/sciencete...n-t-exist.html


In fact this Youtube video, attempts to model this new planet and how it
would be affected by Planet 9.

https://youtu.be/0qA5cJDRdm4

Yousuf Khan

New paper out by the original theorists of Planet Nine (Mike Brown et
al.) state that the new Kuiper Belt object 2013 SY99, does indeed fit
into the pattern required for Planet 9 to exist! They said that they
have produced a more complex computer model for distribution of objects
due to P9. The discoverers of the outlier KBO weren't aware of the
updated model.

http://www.findplanetnine.com/2017/0...core-card.html

In article ,
Yousuf Khan writes:
New paper out by the original theorists of Planet Nine (Mike Brown et
al.) state that the new Kuiper Belt object 2013 SY99, does indeed fit
into the pattern required for Planet 9 to exist!
....
http://www.findplanetnine.com/2017/0...core-card.html

The blog post is nice, but I couldn't find the new paper. The latest
paper I could find is linked from
http://adsabs.harvard.edu/abs/2016ApJ...833L...3B
(There's also a preprint link.) I haven't looked, but I'd expect the
paper's introduction to explain the status as of the time of writing.

I don't know enough about this subject to have an opinion of my own.

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Help keep our newsgroup healthy; please don't feed the trolls.
Steve Willner Phone 617-495-7123
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