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J/ApJ/540/236/table1 KH photometry of Orion Nebula Cluster (Hillenbrand+, 2000)
Keck/NIRC photometry and astrometry for the inner ONC (777 rows)
  [HC2000]=499
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ColumnValue  Explain   (UCD)
_RAJ200005 35 13.7800 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-05 22 17.400 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195005 32 46.2937 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-05 24 10.874 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon208.9881944 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-19.3857551 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
498recno 498  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

[HC2000]499  Orion Nebula Cluster Identification number (Note 1)   
RAJ200005 35 13.78 "h:m:s" Right Ascension (J2000) (Note 2)   
DEJ2000-05 22 17.4 "d:m:s" Declination (J2000) (Note 2)   
l_Kmag   Limit on Kmag
Kmag11.003 mag The 2.2µm magnitude from Keck/NIRC
l_Hmag   Limit on Hmag
Hmag13.125 mag The 1.6µm magnitude from Keck/NIRC
e_Kmag 0.012 mag IRAF/PHOT errors in Kmag; intended for relative comparison only
e_Hmag 0.013 mag IRAF/PHOT errors in Hmag; intended for relative comparison only
OptID   Optical identification (Note 3)   
AltID   Alternative IR identification (Note 4)   
  
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