The nearest found maser object is G78.676+0.257 (offset by 0.5" from input coordinates)
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display_aladin("307.6687180","39.7525650","G78.676+0.257","G78.676+0.257","20288+3934, G078.6789+00.2554, 20288+3934, G78.66+0.27, IRAS20288+3934","0")