NED object is NGC 6951; Reference is 1985A&AS...60..293H Fig. 1k. NGC6951 Contours plotted (mJy per beam) -1, 1, 2.5, 5, 7.5, 10, 15, 20, 25 -- HPBW (arcsec) 28 -- r.m.s. noise (mJy per beam) 0.4 -- kpc per arcmin 6.6.