Abstract: We present the first maps of cyanoacetylene isotopologues in Titan’s atmosphere, including H13CCCN and HCCC15N, detected in the 0.9?mm band using the Atacama Large Millimeter/submillimeter array (ALMA) around the time of Titan’s (southern winter) solstice in 2017 May. The first high-resolution map of HC3N in its v7 = 1 vibrationally excited state is also presented, revealing a unique snapshot of the global HC3N distribution, free from the strong optical depth effects that adversely impact the…