Dictionary of Nomenclature of Celestial Objects

 vey plates utilized for the construction of the Guide    Star Catalog II. The catalog covers 22,525 sq. degrees and lists    N=100774153 objects to the limiting magnitude of RF∼20.8.
   Ref:=2015AJ....150..137Q
     byQI Z.
, YU Y., BUCCIARELLI B., LATTANZI M.G., SMART R.L., SPAGNA A., McLEAN B.J., TANG Z., JONES H.R.A., MORBIDELLI R., NICASTRO L., VECCHIATO A.
 Astron. J., 150, 137 (2015)

    Absolute proper motions outside the plane (APOP)-a step toward the
    GSC2.4.
o<APOP NNNNN+NNNNNNN> N=100774150.
=E=Catalogue in electronic form as <I/331/>

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