Is there any legitimacy to this report of planet nine being discovered by an amateur? Saw this article on someone from Hampshire UK reporting a possible discovery of Planet Nine. I thought that it would be too dim for anything but the most powerful telescopes to see. Is there any legitimacy to this article?
This has not been confirmed so whether it is legit is unknown at this time.  A recent report (https://arxiv.org/abs/1706.05348) calls into question the original analysis that leads to the initial report of planet nine. The report that fueled initial interest is given below.

(EVIDENCE FOR A DISTANT GIANT PLANET IN THE SOLAR SYSTEM
Konstantin Batygin and Michael E. Brown
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA; kbatygin@gps.caltech.edu
Received 2015 November 13; accepted 2016 January 10; published 2016 January 20)