Fig. 1.
SDSS image of the galaxy pair SDSS J134420.86+663717.8. North is up and left is East. The central bulge hosts the two nuclei: nucleus A, which is at the bottom of the bulge, and nucleus B, at the top of the bulge. Clearly visible is the tidal arm to the north-east of nucleus B, while the tidal arm to the south-west of nucleus A appears quite foreshortened. The position angle in degrees (measured from the North to the East) and the 1 arcsec slit used for long-slit spectroscopy with LBT/MODS are illustrated. Credit: SDSS Skyserver Data Release 15.
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