VizieR

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VizieR

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J/ApJ/787/109/table1 Age estimates for NGC 2024 and ONC stars (Getman+, 2014)
AgeJX Estimates for NGC 2024 and ONC Stars (512 rows)
  recno=303
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ColumnValue  Explain   (UCD)
_RAJ200005 35 16.38793 "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 21 50.6050 "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 48.89307 "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 23 43.8901 "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)
_Glon208.98634704 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-19.37273940 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)
303recno 303  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

CIDONC  Cluster identifier (NGC 2024, ONC) (meta.id.parent)
MPCM053516.38-052150.6  MYStIX source IAU designation (HHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
RAJ2000083.818283 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
DEJ2000-05.364057 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
R 0.18 pc Angular distance from cluster center (pos.angDistance)
logLX29.46 [10-7W] Log intrinsic 0.5-8 keV X-ray luminosity (Note 1)   (phys.luminosity;em.X-ray)
Age 3.9 Myr Age estimate from Getman et al. 2014ApJ...787..108G (Note 2)   (time.age)
DFlagnoKs  Disk flag (Note 3)   (meta.code)
AFlag[1-2]Rc  Annular region stratum (Note 4)   (phys.angSize)
  
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