SIMBAD query result

Please have a look at the "Dictionary of Nomenclature"

Result of query: info cati MRSS 421-173734

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 [Class]      Acronym  (Explanation)   . . . . . . . . . in Simbad, use:
 [Galaxy]     MRSS (Muenster Red Sky Survey) . . . . . . MRSS JHHMMSS.s+DDMMSS
 [Galaxy]     MRSS (Muenster Red Sky Survey) . . . . . . MRSS FFF-NNNNNN