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Fig. 1


A false-color composite of DSSII IR (red), 2MASS KS (green), and our SofI KS image (blue) with ~3.5 × 3 arcmin field of view, centered at WISE J0720. North is up and east is to the left. Another HPM star 2MASS J072007080845589, not related to WISE J0720, is visible to the northeast of WISE J0720. The bright green dots on the western side, with no counterparts in the other images, are cross-talk artifacts in the 2MASS. The white dots show the positions of the two HPM stars in 50 yr steps, over a 50150 yr period, with respect to the DSS2 IR epoch (see Table 5).

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