Astrometric displacements between the two epochs for all known sources (data from Viswanath et al. 2023) with the addition of Cb (blue diamond) and CC14 (red downward-pointing triangle). The expected displacement at the second epoch is indicated by a white and a black star for a static background source and a comoving source with the target, respectively. The mean astrometric shift of background sources (gray crosses) is shown as a thick gray cross. Inset: Relative motion between Cb and C, with C set as the primary; the error bar associated with Cb is small enough to be hidden behind the diamond.