SIMBAD query result

Please have a look at the "Dictionary of Nomenclature"

Result of query: info cati 21 Her (AB)

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 [Class]      Acronym  (Explanation)   . . . . . . . . . in Simbad, use:
 [*inCl]      Cl Berkeley 21   . . . . . . . . . . . . . Cl Berkeley 21 NNN
              Cl* Berkeley 21 CJ (Christian+Janes) . . . Cl Berkeley 21 NNN
 [*inCl]      Cl Pismis 21   . . . . . . . . . . . . . . Cl Pismis 21 NN
              Cl* Pismis 21 MF (Moffat+Fitzgerald) . . . Cl Pismis 21 NN
 [*inCl]      Cl Trumpler 21   . . . . . . . . . . . . . Cl Trumpler 21 NN
              Cl* Trumpler 21 MV (Moffat+Vogt) . . . . . Cl Trumpler 21 NN