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Fig. 1

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Finder charts of 6 × 6 arcmin2 centred on WISE J0720−0846 from SuperCOSMOS Sky Surveys (SSS) of BJ-band (left) and I-band (centre) photographic plates, and from WISE w2-band (right) observations. The target is marked by an arrow, and nine reference stars used for positional corrections (Sect. 3) are marked by dashes, respectively.

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