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Originally posted by Phage
Of course, there are a good number of astronomers who believe that there isn't a massive object in the outer Solar System, or at least that the available data does not indicate so.
The question is likely to be settled when the data from WISE is gone over with a fine toothed comb. Whitmire and Matese are certainly expecting that it will prove their Tyche hypothesis.
As we head towards winter, I expect to see the first signs of some moderate to heavy snowfalls as early as October or November in certain parts of the UK. In terms of the meteorological winter, I expect December, January, and February to experience below average temperatures, with the heaviest snowfalls occurring within the time frame of November to January across many parts of the UK.
Originally posted by Xcalibur254
All of the proposed theories regarding solar companions and distant planets never have them coming in the inner solar system. At what time Nemesis was projected to have an elliptical orbit, but further research showed that it would not be able to maintain such eccentric orbit for long. So any object proposed would be far from Earth and never really have an effect on the known planets in any way. This is one of the reasons why these theories are widely disputed. There simply isn't any physical evidence that points exclusively to their existence. Now, the Oort Cloud is a large area, so it's probably pretty likely that there are at least some dwarf planets lurking out there. However, when they are discovered I think they will be treated more like Makemake's discovery that the average lay person doesn't really care about, as opposed to the discovery of Uranus that changed everyone's perception of the solar system.
A simulated example of a binary star, where two bodies with similar mass orbit around a common barycenter in elliptic orbits
Originally posted by Xcalibur254
If Nemesis exists Pioneer might see it.
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