Keywords: Planet Nine symbol proposal.svg en Sketch of a possible symbol proposal as one could be done if Planet Nine will in fact be detected It has the overall shape of the digit 9 in a way which resembles also the mirrored shape of Arabic and Devanagari forms of this digit The small partial ellipse within the head resembles the orbits of the trans-Neptunian objects on which the claim of the existence of Planet Nine was based at first 2016-01-27 own own idea Karl432 other versions cc-zero Planet Nine Proposed astronomical symbols |