VizieR

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VizieR

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J/AJ/113/1733/ONC Orion Nebula Cluster population (Hillenbrand 1997)
Stars of Orion nebula cluster (table 1 and 2 of paper) (1576 rows)
  recno=556
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ColumnValue  Explain   (UCD)
_RAJ200005 35 13.4600 "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 23 03.920 "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 45.9888 "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 57.416 "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)
_Glon208.9997749 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-19.3927850 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)
556recno 556  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

ID9045  Identification number (Note 1)   (meta.id;meta.main)
m_ID   Multiplicity index on ID (meta.code.multip)
Parenago    Parenago (1954, Cat II/171) number (Note 2)   (meta.id)
Mem  % Membership probability (Note 3)   (stat)
Rproj 0.80 min Projected radius from Theta 1C Ori (pos.angDistance)
Imag15.91 mag Adopted I magnitude (Cousins) (phot.mag;em.opt.I)
l_V-I   Limit flag on V-I (from Prosser et al., 1994ApJ...421..517P) (meta.code.error;phot.color;em.opt.V)
V-I 4.17 mag Adopted V-I color index (phot.color;em.opt.V;em.opt.I)
Ref 4   Photometry reference (Note 5)   (meta.ref)
Comm    Comment reference (Note 6)   (meta.ref;pos.frame)
logT  [K] Effective temperature of adopted spectral type (phys.temperature.effective)
SpTlate-K:(H)  Spectral type with reference in parentheses (Note 7)   (meta.ref;src.spType)
AV  mag Visual extinction (Note 1)   (phys.absorption;em.opt.V)
log(Teff)-9.999 [K] Effective temperature assigned from spectral type (phys.temperature.effective)
log(L)  [solLum] Stellar luminosity (Note 2)   (phys.luminosity)
R  solRad Stellar radius calculated from luminosity and effective temperature (phys.size.radius;meta.modelled)
M  solMass Stellar mass (Note 3)   (phys.mass)
log(age)  [yr] Stellar age interpolated from D'Antona & Mazitelli (1994ApJS...90..467D) isochrones (time.age)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref)

RAJ200005 35 13.46 "h:m:s" (i) Right ascension (J2000) (Note 4)   (pos.eq.ra;meta.main)
DEJ2000-05 23 03.92 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  
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