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VizieR

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J/A+A/479/927/groups Group of galaxies in SDSS 5 (Tago+, 2008)
Groups of galaxies (tables 3a and 3b of paper, dr5Egr + dr5Ngr) (50362 rows)
  Group= 252, F=E
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200010 13 54.097 "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 53 37.67 "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 20.749 "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 38 43.65 "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)
_Glon242.930648 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+42.897116 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)
252recno 252  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
FE  E or N groups (required to identify a group) (obs.field)

Group 252  (i) Group identification number (meta.id;meta.main)
Ngal 55  Richness (number of member galaxies) (linked to galaxies in the group) (src.class.richness)
RAJ2000153.4754 deg (i) Right Ascension in decimal degrees, J2000 (mean of member galaxies) (pos.eq.ra;meta.main)
DEJ2000-00.8938 deg (i) Declination in decimal degrees, J2000 (mean of member galaxies) (pos.eq.dec;meta.main)
Dist 136.56 Mpc Comoving distance (mean of member galaxies corrected for CMB), in Mpc/h (pos.distance)
Size 1.6971 Mpc Maximum projected linear size, in Mpc/h (phys.size)
sigma 724.31 km/s rms radial velocity (velocity dispersion) (stat.stdev;spect.dopplerVeloc)
Rvir0.2588 Mpc Virial radius (projected harmonic mean), in Mpc/h (phys.size.radius)
Lmain 1.3436 10+10solLum Luminosity of main galaxy (Note 1)   (phys.luminosity)
LgrObs 22.688 10+10solLum Observed total group luminosity (Note 1)   (phys.luminosity)
LgrEst 31.899 10+10solLum Estimated total group luminosity (Note 1)   (phys.luminosity)
  
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