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VizieR

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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)
  recno=450
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ColumnValue  Explain   (UCD)
_RAJ200005 35 13.9700 "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 31.900 "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 46.4884 "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 25.360 "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)
_Glon208.9923803 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-19.3868744 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)
450recno 450  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

[HC2000]451  Orion Nebula Cluster Identification number (Note 1)   
RAJ200005 35 13.97 "h:m:s" Right Ascension (J2000) (Note 2)   
DEJ2000-05 22 31.9 "d:m:s" Declination (J2000) (Note 2)   
l_Kmag   Limit on Kmag
Kmag10.835 mag The 2.2µm magnitude from Keck/NIRC
l_Hmag   Limit on Hmag
Hmag12.743 mag The 1.6µm magnitude from Keck/NIRC
e_Kmag 0.032 mag IRAF/PHOT errors in Kmag; intended for relative comparison only
e_Hmag 0.014 mag IRAF/PHOT errors in Hmag; intended for relative comparison only
OptID   Optical identification (Note 3)   
AltIDIRc3-south  Alternative IR identification (Note 4)   
  
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