The nearest found maser object is G90.210+2.324 (offset by 1.4" from input coordinates)
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display_aladin("315.5950908","50.0519108","G90.210+2.324","G90.210+2.324","(183) IRAS 21007+4951, 21007+4951, IRAS 21007+4951, IRAS21007+4951, L988-a, WB23, 532, L988-a","0")