The nearest found maser object is G339.980-0.538 (offset by 1.6" from input coordinates)
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display_aladin("252.3114763","-45.6088285","G339.980-0.538","G339.980-0.538","16455-4531, 339.980-0.538, 339.980-0.538, 339.980-0.539","0")