Examples of multiple NB excess in J-PLUS photo spectra. Empty and filled squares mark NB and BB photometry, respectively, while the dashed yellow line shows the linear continuum we estimate through g and r BBs (in green and red, respectively). This comparison shows that both a z​ ∼ ​0.05 galaxy (upper panel) and a z​ ∼ ​2.25 QSO (lower panel) exhibit significant excesses in J0395 and J0515 NBs (second and fifth empty squares from the left, respectively). The J0515 excess is produced by H _β at z​ ∼ ​0.05 and the CIV line at z​ ∼ ​2.25, but its nature is hardly distinguishable using J-PLUS photometry.