The nearest found maser object is G339.986-0.425 (offset by 1.6" from input coordinates)
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display_aladin("252.1929945","-45.5308343","G339.986-0.425","G339.986-0.425","339.986-0.425, G339.986-0.425, G339.986-0.425, G339.987-0.425","0")