The nearest found maser object is G12.721-0.216 (offset by 15.4" from input coordinates)
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display_aladin("273.5324110","-18.0057270","G12.721-0.216","G12.721-0.216","18112-1801, 18112-1801, 2715, CMHO 019, G12.722-0.218, BGPS1758, CMHO 019, IRAS18112-1801 msx","0")