Dictionary of Nomenclature of Celestial Objects

,1963, 22, 1-36 (1970)
  Proper motion survey with the 48-inch Schmidt telescope. XXII. Special catalogues for the zone +70° to +75°.
o<LPD NNN> (Nos 314-524). <PSM NNNNN> N=852 among (Nos 11015-18010).
Auth.:LUYTEN W.J.

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