I listened to what I thought was an interesting interview on late night talk radio on the titled subject on Coast to Coast AM radio. Synopsis below. [Such a discovery of another heavenly body "in our solar system would be exciting because of ancient historical records which some [Sitchin for one] believe describe such a body. Such descriptions have supposedly been found in multiple cultures...Mesopotamian and Indian among them if I recall, maybe Aztec as well. Cruttenden in the interview here seems to think the cycle of the body is more like 24,000 years; He seemed to think that so far observations over a few degrees of arc seconds in the expected direction would have to continue until at least several degrees of arc minutes were surveyed before we'd be lucky enough to spot such a distant object. Maybe we'll be lucky in our life time?] My specific question is whether this object is really gaining interest among mainstream astronomers as claimed in the interview. For example, have teams actually undertaken calculations to explain the odd orbits we observe in the outer reaches or our solar system. Are there strong competing theories. Date: Friday - February 12, 2016 Host: Jimmy Church Guests: Walter W. Cruttenden,Open Lines "In the first half, guest host Jimmy Church welcomed theoretical archaeo-astronomer Walter Cruttenden, who discussed the recent scientific discoveries of a possible new planet as well as "gravity waves." Ten years ago, Cruttenden presented the theory that, based on the effects on the outer objects in the solar system, as well as the strangely inclined and elliptical orbit of Pluto, that there had to be another large gravitational attractor besides the sun affecting the solar system. "There's multiple items that point to a large object out there," he said, and added that the theory of another large, but unseen object beyond Pluto was even being discussed just after the time of its discovery in 1930. Cruttenden spoke extensively about Mike Brown, the astronomer leading the research team at Caltech who originally led the effort to demote Pluto to "dwarf planet" status, and who has since tried to locate a suspected giant planet in the outer solar system. As more objects were discovered by Brown and his team, they noticed that they were lining up in an unusual way that could not be explained by the gravitational influence of the Sun or any of the outer planets. Since the existence of a new ninth planet has been proposed, Cruttenden noted that there are probably "a thousand different astronomers" now searching for it. One caller in the second hour asked why the Hubble or Kepler space telescopes could not be used to search for the new planet. Cruttenden replied that the object may be covered in dark material and so far away that it would be very difficult to observe. He also discussed the possibility that the object may be a small, very old star that is locked in a binary system with the Sun. "I think stars like companions as much as people do," he joked. In addition to the two celestial motions (Earth's rotation and orbit around the Sun) which cause day and night and the seasons, Cruttenden proposed that the discovery of a third motion (around a distant binary star) may lead to a new way of looking at the history of the planet and hints in ancient literature about a cosmic 10- to 20,000 year cycle, which is the proposed orbital period for the unknown planet or star..."