VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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VII/250/2dfgrs The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)
Best observations of 2dFGRS (low-quality redshifts are written in red) (245591 rows)
  SeqNum=376386
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200021 56 58.7400 "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)
_DEJ2000-50 59 50.400 "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)
_RAB195021 53 42.0791 "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)
_DEB1950-51 14 08.036 "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)
_Glon344.8316084 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-49.4532947 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)
238618recno 238618  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SeqNum376386  (i) 2dFGRS serial number (SEQNUM) (meta.id)
o_SeqNum1   [1,6] Number of spectra obtained (meta.number)
NameTGS823Z237  (i) 2dFGRS name (NAME) (meta.id;meta.main)
UKST237  UKST plate number (IFIELD) (obs.field)
RAJ200021 56 58.74 "h:m:s" (i) Right ascension (J2000, hours) (pos.eq.ra;meta.main)
DEJ2000-50 59 50.4 "d:m:s" (i) Declination (J2000, degrees) (pos.eq.dec;meta.main)
Bjmag17.174 mag Final bj magnitude (BJG) (Note 1)   (phot.mag;em.opt.B)
Bjsel17.054 mag Final bj magnitude corrected from extinction (BJSEL) (Note G2)   (phot.mag;em.opt.B)
Bjmag.o17.310 mag Original bj magnitude (BJG_OLD) (Note 1)   (phot.mag;em.opt.B)
Bjsel.o17.230 mag Original bj magnitude corrected from extinction (BJSELOLD) (phot.mag;em.opt.B)
Gext 0.120 mag Galactic extinction value (GALEXT) (phys.absorption)
Bjmag.S17.074 mag SuperCosmos bj magnitude (SB_BJ) (Note 1)   (phot.mag;em.opt.B)
Rmag.S15.754 mag SuperCosmos R magnitude (SR_R) (Note 1)   (phot.mag;em.opt.R)
ObsRun00SEP  Observation run of best spectrum (OBSRUN) (obs.param;obs)
z.obs 0.0750   Best redshift (observed) (Z) (Note 2)   (src.redshift;pos.heliocentric)
z 0.0749   Best redshift (heliocentric) (Z_HELIO) (Note 2)   (src.redshift)
q_z5   [1,5] Redshift quality for best spectrum (reliable redshifts have quality≥3) (Note 2)   (meta.code.qual;src.redshift)
n_z1  Redshift type (abs=1, emi=2, man=3) (ABEMMA) (meta.note)
z.abs 0.0750   Cross-correlation redshift (Z_ABS) (Note 2)   (src.redshift;pos.heliocentric)
T1  Cross-correlation template (KBESTR) (Note 2)   (stat.fit.param)
Rx16.44   Cross-correlation R value (R_CRCOR) (Note 2)   (stat.fit.param)
z.em    Emission redshift (Z_EMI) (Note 2)   (src.redshift;pos.heliocentric)
o_z.em0  Number of emission lines for Z_EMI (NMBEST) (Note 2)   (meta.number)
SNR 35.7  Median signal to noise ratio per pixel (Note 2)   (em.wl.central;stat.median)
eta -2.7209   Eta spectral type parameter from best spectrum (ETA_TYPE) (Note G1)   (stat.fit.param)

SpSp  Show the Image and annotated Spectrum of this 2dF Object (meta.ref.url)
  
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