The nearest found maser object is G12.430-0.048 (offset by 1.5" from input coordinates)
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display_aladin("273.2275000","-18.1855560","G12.430-0.048","G12.430-0.048","180957.8-181143, 18099-1811, G12.43-0.05, 18099-1811, G12.43-0.05","0")