J-spectra of different classes of stars, galaxies, and quasars in the miniJPAS field (colored symbols) compared with the SDSS spectra (gray lines). The miniJPAS object ID, r magnitude, and classification are listed in the legend. Extragalactic sources are ordered by increasing redshift, and both spectroscopic (SDSS) and photometric (miniJPAS) redshift are provided in the legend. The multi-color inset images are centred on the object and are 30 arcsec across. The ellipses visible for extended sources are the ⟨auto ellipse⟩ (inner ellipses) and the ⟨petro ellipse⟩ (outer ellipses).