NASA NTRS · 19870046843
Dynamical evidence for Planet X
Abstract
The dynamical evidence for a planet beyond the orbit of Neptune is reviewed. Three years of radio tracking data from Pioneer 10 can be fit to the noise level with no evidence for unmodelled acceleration at a level higher than 5 x 10 to the -14th km/sq s. The evidence does not place severe limits on the Planet X model, but does place a firm limit of five earth masses on a hypothetical comet belt just beyond the orbit of Neptune.
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Anderson, John D., Standish, E. Myles, Jr.. 1986-01-01. Dynamical evidence for Planet X. https://ntrs.nasa.gov/citations/19870046843
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