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SAO: Smithsonian Astrophysical Observatory
Contents
Table name: SAO
Records: 258997
Spectral Band: OPT,Vband
Kind of Object: Star
Mode: Astrometry,Proper Motion
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Coordinates: B1950, J2000
Reference
- SMITHSONIAN ASTROPHYSICAL OBSERVATORY CATALOG (S.A.O.) (1966) Star
catalog with positions and proper motions of 258,997 stars for the
epoch and equinox 1950.0, prepared by the staff of Smithsonian
Astrophysical Observatory, Cambridge, Mass.
Fields
Name Type Meaning
sao i SAO star number
r_a1950 i Right ascension, epoch 1950.0
dec1950 i Declination, epoch 1950.0
e_pos f Standard position error, in arcsec
vmag i Visual magnitude (99.9 if unknown)
r_a i Right ascension, epoch and equinox J2000
dec i Declination, epoch and equinox J2000
sp c Spectral type
pma f Annual proper motion (mu )(alp) (arcsec/yr)
e_pma f Mean error on (mu )(alp) (arcsec)
pmd i Annual proper motion (mu )(del) (arcsec/yr)
e_pmd f Mean error on (mu )(del) (arcsec)
name c Name in BD catalogue
lii I Galactic Longitude
bii I Galactic Latitude