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J/ApJS/167/1/table4 Galaxy groups and clusters from SDSS (Berlind+, 2006)
Member Galaxies of Groups and Clusters for Samples Mr20, Mr19, and Mr18 (44554 rows)
  recno=836
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ColumnValue  Explain   (UCD)
_RAJ200014 29 40.63367 "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 21 59.0400 "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)
_RAB195014 27 07.19242 "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 35 18.2209 "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)
_Glon348.39077718 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+54.32796676 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)
836recno 836  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SampMr20  The R band sample (Note G1)   (src.sample)
Group 712  Group identification number (Note 1)   (meta.id.parent)
RAJ2000217.419307 deg (i) Galaxy Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
DEJ2000+00.366400 deg (i) Galaxy Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
z 0.05504  Galaxy redshift (Note 2)   (src.redshift)
rMAG-21.618 mag Galaxy r band absolute magnitude (phys.magAbs)
g-r 0.988 mag Galaxy (g-r) color index (phot.color;em.opt.B;em.opt.R)
f_z0   [0/1] Fiber collision flag (Note 3)   (meta.code)
Redge 50.4 Mpc Perpendicular distance of galaxy from the survey edge (in h–1 Mpc) (pos.distance)

SDSSSDSS  Display the SDSS data (meta.ref.url)
  
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