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VizieR

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J/A+A/514/A102/table2b SDSS DR7 groups of galaxies (Tago+, 2010)
DR7 flux-limited Mr < -18 groups (5463 rows)
  recno=4858
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200016 04 20.0501 "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+12 47 08.942 "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)
_RAB195016 01 59.5700 "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+12 55 17.859 "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)
_Glon025.1575062 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+42.7762895 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)
4858recno 4858  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Group 4858  Group identification number (meta.id)
Ngal 3  Richness (number of member galaxies) (meta.number)
RAJ2000241.08354 deg (i) Right Ascension (mean of member galaxies), J2000 (pos.eq.ra;meta.main)
DEJ2000+12.78582 deg (i) Declination (mean of member galaxies), J2000 (pos.eq.dec;meta.main)
Dist122.03 Mpc Comoving distance (mean of member galaxies) (Note G1)   (pos.distance)
Size 0.1593 Mpc Maximum projected linear size (Note G1)   (phys.size)
dispD 0.08 Mpc rms deviation of projected distance (Note G1)   (stat.error)
dispV 130.3 km/s rms radial velocity (stat.error)
Rvir 0.08 Mpc Virial radius (projected harmonic mean) (Note G1)   (phys.size.radius)
w 1.095  Luminosity weight (stat.weight)
Lobs 1.43 10+10Lsun Observed total group luminosity (Note G1)   (phys.luminosity)
  
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