How do you convert from Gleise number to SAO number?

Your best bet is to use the Hipparcos Input Catalog ESA Publication SP-1136 edited by C. Turan et al. 1992. It is a catalog of some 100,000 stars observed by the Hipparcos satellite and in its 7 volumn set, each star has a column for alternate catalog identifications. All of the Gleise stars are in there, together with their SAO, HD and AGK3 numbers. Example, SAO 91669 = Gleise 914A = HD 224930.

The Hipparcos Observatory also has several online catalogs at ESA/ESTEC which list star names and some cross-index information. According to their information, the various fields in the tables are as follows:

All four tables give results for the same series of quantities. The successive fields contain: 

   1.the identifier in the Hipparcos Catalogue (the HIP number, Field H1); 
   2.if available, the identifier in the HD Catalogue (the HD number, Field          H71); 
   3.the (truncated) right ascension (alpha), in degrees (Field H8); 
   4.the (truncated) declination (delta), in degrees (Field H9); 
   5.the visual magnitude V (FieldH5); 
   6.the absolute visual magnitude, computed as M_V=V+5 log (pi)-10, with pi in milliarcsec; 
   7.the trigonometric parallax (pi), in milliarcsec (Field H11); 
   8.the standard error in the trigonometric parallax sigma_pi, in milliarcsec (Field H16); 
   9.the relative precision of the distance sigma_pi/pi; 
  10.the total proper motion |mu| in milliarcsec per year; 
  11.the proper motion in right ascension (mu_alpha*) in milliarcsec per year (Field H12); 
  12.the proper motion in declination (mu_delta) in milliarcsec per year (Field H13); 
  13.the transverse velocity, computed as V_T = A_v |mu|/pi, in km/s; 
  14.an asterisk indicating that the star is in the Catalogue of Nearby Stars, 3rd version (CNS3); 
  15.the Bayer/Flamsteed name of the star (as in Volume 13); if not available, a common name (as in Volume 13); if not
     available, blank.


Copyright 1997 Dr. Sten Odenwald

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