VizieR

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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=274638
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200010 14 34.2600 "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 50 14.500 "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 12 00.8801 "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 19.156 "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)
_Glon243.0169981 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+43.0620188 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)
170863recno 170863  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SeqNum274638  (i) 2dFGRS serial number (SEQNUM) (meta.id)
o_SeqNum1   [1,6] Number of spectra obtained (meta.number)
NameTGN288Z161  (i) 2dFGRS name (NAME) (meta.id;meta.main)
UKST854  UKST plate number (IFIELD) (obs.field)
RAJ200010 14 34.26 "h:m:s" (i) Right ascension (J2000, hours) (pos.eq.ra;meta.main)
DEJ2000-00 50 14.5 "d:m:s" (i) Declination (J2000, degrees) (pos.eq.dec;meta.main)
Bjmag17.177 mag Final bj magnitude (BJG) (Note 1)   (phot.mag;em.opt.B)
Bjsel17.017 mag Final bj magnitude corrected from extinction (BJSEL) (Note G2)   (phot.mag;em.opt.B)
Bjmag.o17.570 mag Original bj magnitude (BJG_OLD) (Note 1)   (phot.mag;em.opt.B)
Bjsel.o17.460 mag Original bj magnitude corrected from extinction (BJSELOLD) (phot.mag;em.opt.B)
Gext 0.160 mag Galactic extinction value (GALEXT) (phys.absorption)
Bjmag.S17.028 mag SuperCosmos bj magnitude (SB_BJ) (Note 1)   (phot.mag;em.opt.B)
Rmag.S15.741 mag SuperCosmos R magnitude (SR_R) (Note 1)   (phot.mag;em.opt.R)
ObsRun99DEC  Observation run of best spectrum (OBSRUN) (obs.param;obs)
z.obs 0.0449   Best redshift (observed) (Z) (Note 2)   (src.redshift;pos.heliocentric)
z 0.0450   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 0.0449   Cross-correlation redshift (Z_ABS) (Note 2)   (src.redshift;pos.heliocentric)
T2  Cross-correlation template (KBESTR) (Note 2)   (stat.fit.param)
Rx17.21   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 33.1  Median signal to noise ratio per pixel (Note 2)   (em.wl.central;stat.median)
eta -2.8513   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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