Fig. 1

Left panel: Swift UVOT UVW2 filter image (color) with overlay contour levels of the XRT image (green lines). The XRT centroid coincides with a background source present in the PanSTARRS archive. Right panel: PanSTARRS image (g band) obtained with observations between 2009 and 2014. The coordinates of LHS 1140 do not coincide in these two images due to its proper motion. The object in the upper left is LEDA 913494, a galaxy present in the Hyperleda database (Paturel et al. 2003).
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