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Finding nearby neutron stars can probe the supernova and metal-enrichmenthistories near our Solar system. Recently, Lin et al. 2023 reported an excitingneutron star candidate, 2MASS J15274848+3536572 (hereafter J1527), with a smallGaia distance of 118 parsecs. They claim that J1527 harbors an unseen neutronstar candidate with an unusually low mass of $0.98\pm0.03\,M_{\odot}$. In thiswork, we use the Canada-France-Hawaii Telescope high-resolution spectrum tomeasure J1527's orbital inclination independently. Our spectral fittingsuggests an orbital inclination of $63\pm2$ degrees. Instead, by fitting acomplex hybrid variability model consisting of the ellipsoidal-variationcomponent and the star-spot modulation to the observed light curve, Lin et al.2023 obtains an orbital inclination of $45.2_{-0.20}^{+0.13}$ degrees. Wespeculate that the orbital inclination obtained by the light-curve fitting isunderestimated, since J1527's light curves are obviously not pure ellipsoidalvariations. According to our new inclination ($i\sim 63$ degrees), the mass ofthe unseen compact object is reduced to $0.69\pm0.02\,M_\odot$, which is asmassive as a typical white dwarf.

The hidden companion in J1527: a 0.69 solar-mass white dwarf?