VizieR

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VizieR

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J/A+A/514/A102/table2c SDSS DR7 groups of galaxies (Tago+, 2010)
DR7 flux-limited Mr < -19 groups (12590 rows)
  recno=2640
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200010 14 10.6604 "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)
_DEJ2000-00 52 15.540 "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)
_RAB195010 11 37.2996 "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)
_DEB1950-00 37 20.969 "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)
_Glon242.9666870 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+42.9648379 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)
2640recno 2640  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Group 2640  Group identification number (meta.id)
Ngal 22  Richness (number of member galaxies) (meta.number)
RAJ2000153.54442 deg (i) Right Ascension (mean of member galaxies), J2000 (pos.eq.ra;meta.main)
DEJ2000-00.87098 deg (i) Declination (mean of member galaxies), J2000 (pos.eq.dec;meta.main)
Dist140.96 Mpc Comoving distance (mean of member galaxies) (Note G1)   (pos.distance)
Size 1.1628 Mpc Maximum projected linear size (Note G1)   (phys.size)
dispD 0.32 Mpc rms deviation of projected distance (Note G1)   (stat.error)
dispV 406.1 km/s rms radial velocity (stat.error)
Rvir 0.21 Mpc Virial radius (projected harmonic mean) (Note G1)   (phys.size.radius)
w 1.122  Luminosity weight (stat.weight)
Lobs 16.07 10+10Lsun Observed total group luminosity (Note G1)   (phys.luminosity)
  
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