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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= 874, F=E
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200011 22 08.507 "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 47 52.97 "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)
_RAB195011 19 34.563 "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+01 04 20.39 "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)
_Glon260.077304 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+56.053054 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)
874recno 874  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 874  (i) Group identification number (meta.id;meta.main)
Ngal 7  Richness (number of member galaxies) (linked to galaxies in the group) (src.class.richness)
RAJ2000170.5354 deg (i) Right Ascension in decimal degrees, J2000 (mean of member galaxies) (pos.eq.ra;meta.main)
DEJ2000+00.7980 deg (i) Declination in decimal degrees, J2000 (mean of member galaxies) (pos.eq.dec;meta.main)
Dist 309.31 Mpc Comoving distance (mean of member galaxies corrected for CMB), in Mpc/h (pos.distance)
Size 0.9492 Mpc Maximum projected linear size, in Mpc/h (phys.size)
sigma 317.96 km/s rms radial velocity (velocity dispersion) (stat.stdev;spect.dopplerVeloc)
Rvir0.2080 Mpc Virial radius (projected harmonic mean), in Mpc/h (phys.size.radius)
Lmain 4.2056 10+10solLum Luminosity of main galaxy (Note 1)   (phys.luminosity)
LgrObs 11.237 10+10solLum Observed total group luminosity (Note 1)   (phys.luminosity)
LgrEst 19.743 10+10solLum Estimated total group luminosity (Note 1)   (phys.luminosity)
  
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