The nearest found maser object is G0.6577-0.0419 (offset by 1.4" from input coordinates)
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display_aladin("266.8347820","-28.3960935","G0.6577-0.0419","G0.6577-0.0419","000.657-0.041, 000.658-0.042, 0.658-0.042, G000.657-0.040, G000.657-0.042, G000.658-0.042, G0.658-0.042, G0.658-0.043, OH0.658-0.042, 0.657-0.041, G0.6570-0.0414, 0.657-0.041, G0.657-0.042, Sgr B2 S, Sgr B2-S, SGR B2S, 0.658-0.042","0")