Top panel: velocity contours of the blanked HI datacube from 1560 to 1610 km s⁻¹ (in steps of 10 km s⁻¹) on top of the VST image of the companion of CIG 96. The beam size of the HI data is indicated as a 28″ × 28″ grey disc in the bottom left corner of the image. The white frame represents the central 45″ × 45″ of the SDSS g - r image of the bottom panel. Central panel: SDSS g - r colour index image of the companion of CIG 96 built from the corresponding SDSS g and r images from DECaLS DR5 survey. Bottom panel: same image as in the central panel with the apertures used to measure the g - r colour index. All apertures have a 1.75″ radius. The yellow-edge apertures trace the colours of the elongated feature while the black-edge apertures show the colours of the galaxy.