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VizieR

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J/AJ/98/64/cluster VLA survey of Abell clusters of galaxies I. (Zhao+ 1989)
*Abell cluster properties (from table4) (110 rows)
  recno=76
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ColumnValue  Explain   (UCD)
_RAJ200013 59 10.2 "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+27 59 28 "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)
_RAB195013 56 54.0 "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+28 14 00 "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)
_Glon040.1375 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+74.9757 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)
76recno 76  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Abell1831  (i) Abell (Cat. VII/110) Cluster Number (meta.id;meta.main)
RA195013 56.9 "h:m:s" (i) Right ascension (1950) (pos.eq.ra;meta.main)
DE1950+28 14 "d:m:s" (i) Declination (1950) (pos.eq.dec;meta.main)
m1015.4 mag Magnitude of the tenth-brightness galaxy (phot.mag)
Class1   [0/2] Richness classification (src.class.richness)
z 0.0733   Redshift (src.redshift)
BMIII/II-III  Bautz-Morgan type (src.class.struct)
RSF  Rood-Sastry (1971PASP...83..313R) type (src.class.struct)
NA 67  Number of galaxies in the cluster (meta.number)
MTTriple nuclei  Hubble morphological type (src.morph.type)
l_LX   Limit flag on LX (meta.code.error)
LX  10-7W X-ray luminosity (phys.luminosity;em.X-ray)
n_LX    [abwW] Note on LX (Note 1)   (meta.note)
l_RX   Limit flag on RX (meta.code.error)
RX  Mpc Core radius of the X-ray region (lower limit if interval) (phys.size.radius)
n_RX    [-] -: when interval (meta.note)
RX2  Mpc Upper limit of RX when interval (phys.size.radius)
l_No   Limit flag on No (meta.code.error)
No  cm-3 Central gas density (phys.density)
l_Mx   Limit flag on Mx (meta.code.error)
Mx  solMass Intracluster mass (phys.mass)
tc  yr Cluster cooling time (time.age)
e_tc  yr rms uncertainty on tc (stat.error)
l_LeX    [≲] Limit flag on LeX (meta.code.error)
LeX  % Central X-ray luminosity excess (phys.luminosity;em.X-ray)
n_LeX    [-] -: when interval (meta.note)
LeX2  % Upper limit of LeX when interval (phys.luminosity;em.X-ray)

_RA.icrs13 59.2 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs+27 59 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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