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=124122
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200023 14 47.1600 "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)
_DEJ2000-27 54 18.400 "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)
_RAB195023 12 06.2043 "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)
_DEB1950-28 10 40.005 "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)
_Glon025.2388830 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-68.5909834 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)
91243recno 91243  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SeqNum124122  (i) 2dFGRS serial number (SEQNUM) (meta.id)
o_SeqNum1   [1,6] Number of spectra obtained (meta.number)
NameTGS188Z157  (i) 2dFGRS name (NAME) (meta.id;meta.main)
UKST470  UKST plate number (IFIELD) (obs.field)
RAJ200023 14 47.16 "h:m:s" (i) Right ascension (J2000, hours) (pos.eq.ra;meta.main)
DEJ2000-27 54 18.4 "d:m:s" (i) Declination (J2000, degrees) (pos.eq.dec;meta.main)
Bjmag17.524 mag Final bj magnitude (BJG) (Note 1)   (phot.mag;em.opt.B)
Bjsel17.428 mag Final bj magnitude corrected from extinction (BJSEL) (Note G2)   (phot.mag;em.opt.B)
Bjmag.o17.560 mag Original bj magnitude (BJG_OLD) (Note 1)   (phot.mag;em.opt.B)
Bjsel.o17.490 mag Original bj magnitude corrected from extinction (BJSELOLD) (phot.mag;em.opt.B)
Gext 0.096 mag Galactic extinction value (GALEXT) (phys.absorption)
Bjmag.S17.494 mag SuperCosmos bj magnitude (SB_BJ) (Note 1)   (phot.mag;em.opt.B)
Rmag.S16.329 mag SuperCosmos R magnitude (SR_R) (Note 1)   (phot.mag;em.opt.R)
ObsRun99JUL  Observation run of best spectrum (OBSRUN) (obs.param;obs)
z.obs 0.1043   Best redshift (observed) (Z) (Note 2)   (src.redshift;pos.heliocentric)
z 0.1044   Best redshift (heliocentric) (Z_HELIO) (Note 2)   (src.redshift)
q_z4   [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 0.1043   Cross-correlation redshift (Z_ABS) (Note 2)   (src.redshift;pos.heliocentric)
T3  Cross-correlation template (KBESTR) (Note 2)   (stat.fit.param)
Rx 9.17   Cross-correlation R value (R_CRCOR) (Note 2)   (stat.fit.param)
z.em 0.1030   Emission redshift (Z_EMI) (Note 2)   (src.redshift;pos.heliocentric)
o_z.em2  Number of emission lines for Z_EMI (NMBEST) (Note 2)   (meta.number)
SNR 39.3  Median signal to noise ratio per pixel (Note 2)   (em.wl.central;stat.median)
eta -0.0090   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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