VizieR

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VizieR

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J/PAZh/38/571/catalog Astrophysical parameters for 593 open clusters (Gozha+, 2012)
The catalogue data for 593 open clusters (593 rows)
  recno=30
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ColumnValue  Explain   (UCD)
_RAJ200018 30 58.966 "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)
_DEJ2000-13 09 18.11 "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)
_RAB195018 28 09.670 "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)
_DEB1950-13 11 27.07 "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)
_Glon018.914800 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-01.520200 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)
30recno 30  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

ClusterNGC 6639  Cluster name (meta.id;meta.main)
n_Cluster    [*] far Cluster (Note 1)   (meta.note)
GLON018.9148 deg Galactic longitude (pos.galactic.lon)
GLAT-01.5202 deg Galactic latitude (pos.galactic.lat)
d 700 pc Heliocentric distance (pos.distance;pos.heliocentric)
x 662 pc Heliocentric distance towards Gal. center (pos.cartesian.x;pos.galactic)
y 227 pc Heliocentric distance towards Gal. rotation (pos.cartesian.y;pos.galactic)
z -19 pc Heliocentric distance towards N. Gal. Pole (pos.cartesian.z;pos.galactic)
RG 7.34 kpc Galactocentric radius (pos.distance;pos.galactocentric)
VR-10.5 km/s Galactocentric cylindrical velocity component towards Gal. anticenter (phys.veloc)
VH234.0 km/s Galactocentric cylindrical velocity component towards Gal. rotation (phys.veloc)
VZ -2.0 km/s Galactocentric cylindrical velocity component towards N. Gal. Pole (phys.veloc;pos.cartesian.z)
e 0.05   Orbital eccentricity (src.orbital.eccentricity)
Zmax 0.03 kpc Maximun distance above the Galactic plane (pos.distance;src.orbital)
Ra 7.90 kpc Apogalactic distance (pos.distance;src.orbital)
Rp 7.30 kpc Perigalactic distance (pos.distance;src.orbital)
Age 0.724 Gyr Cluster age (time.age)
logM 1.79 [Msun] Cluster mass (phys.mass)
CC 0.30 [-] Central concentration, log(rcl/rco) (phys.size;arith.ratio)
ell 0.30   Cluster ellipticity (src.ellipticity)
[Fe/H]  [Sun] Cluster metallicity (phys.abund.Z)
r_[Fe/H]   Reference for [Fe/He], in refs.dat file (meta.ref)
[Mg/Fe]  [Sun] Mg/Fe abundance ratio (phys.abund;arith.ratio)
r_[Mg/Fe]   Reference for [Mg/Fe], in refs.dat file (meta.ref;pos.frame)
Sub    [1/3] Subsystem: 1=thin disk, 2=thick disk, 3=halo (meta.id)

SimbadNameNGC 6639  Designation understandable by the Simbad data-base (meta.id)
_RA.icrs277.7457 deg (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs-13.1550 deg (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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