2MASS J − K vs. K diagram for the Neugent et al. (2012) yellow supergiants (yellow circles) and red supergiants (red circles), González-Fernández et al. (2015) red supergiants (purple diamonds), and the 152 supergiant candidates found here (white circles). For our candidates, the uncertainties in both ﹩(J-K)﹩ and K are plotted; for K they are smaller than the symbols. The line shows the dividing line for 105 ﹩{L}_{\odot }﹩.