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We present results of observations in the optical to mid‐infrared wavelengths of the X‐ray source CXO J 172337.5– 373442, which was serendipitously discovered in the  Chandra  images and was found to have a fully resolved X‐ray jet. The observations include a combination of photometry and spectroscopy in the optical using ground‐based telescopes and mid‐infrared photometry using  Spitzer . We detect the optical/IR counterpart of CXO J 172337.5– 373442 and identify it to be a G9 V star located at a distance of 334 ± 60 pc. Comparable values of the hydrogen column densities determined independently from the optical/IR observations and X‐ray observations indicate that the optical source is associated with the X‐ray source. Since the X‐ray luminosity cannot be explained in terms of emission from a single G9 V star, it is likely that CXO J 172337.5– 373442 is an accreting compact object in a binary system. Thus, CXO J 172337.5– 373442 is the nearest known resolved X‐ray jet from a binary system, which is not a symbiotic star. Based on the existing X‐ray data, the nature of the compact object cannot be confirmed. However, the low luminosity of the X‐ray point source,  7.1 × 10 30  L ⊙  , combined with estimates of the age of the jet and a lack of detection of bright outburst, suggests that the X‐ray jet was launched during extreme quiescence of the object. The measured low X‐ray luminosity of the jet suggests the likelihood of such jets being more ubiquitous than our current understanding.

Optical/IR counterpart to the resolved X‐ray jet source CXO J172337.5−373442 and its distance