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=304046
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200012 34 27.5900 "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+02 11 11.300 "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)
_RAB195012 31 54.2153 "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+02 27 42.808 "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)
_Glon292.9553057 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+64.7288387 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)
196186recno 196186  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SeqNum304046  (i) 2dFGRS serial number (SEQNUM) (meta.id)
o_SeqNum1   [1,6] Number of spectra obtained (meta.number)
NameTGN388Z200  (i) 2dFGRS name (NAME) (meta.id;meta.main)
UKST861  UKST plate number (IFIELD) (obs.field)
RAJ200012 34 27.59 "h:m:s" (i) Right ascension (J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+02 11 11.3 "d:m:s" (i) Declination (J2000, degrees) (pos.eq.dec;meta.main)
Bjmag17.466 mag Final bj magnitude (BJG) (Note 1)   (phot.mag;em.opt.B)
Bjsel17.393 mag Final bj magnitude corrected from extinction (BJSEL) (Note G2)   (phot.mag;em.opt.B)
Bjmag.o17.800 mag Original bj magnitude (BJG_OLD) (Note 1)   (phot.mag;em.opt.B)
Bjsel.o17.740 mag Original bj magnitude corrected from extinction (BJSELOLD) (phot.mag;em.opt.B)
Gext 0.073 mag Galactic extinction value (GALEXT) (phys.absorption)
Bjmag.S  mag SuperCosmos bj magnitude (SB_BJ) (Note 1)   (phot.mag;em.opt.B)
Rmag.S  mag SuperCosmos R magnitude (SR_R) (Note 1)   (phot.mag;em.opt.R)
ObsRun02MAR  Observation run of best spectrum (OBSRUN) (obs.param;obs)
z.obs 0.0055   Best redshift (observed) (Z) (Note 2)   (src.redshift;pos.heliocentric)
z 0.0055   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 0.0055   Cross-correlation redshift (Z_ABS) (Note 2)   (src.redshift;pos.heliocentric)
T3  Cross-correlation template (KBESTR) (Note 2)   (stat.fit.param)
Rx 7.13   Cross-correlation R value (R_CRCOR) (Note 2)   (stat.fit.param)
z.em 0.0057   Emission redshift (Z_EMI) (Note 2)   (src.redshift;pos.heliocentric)
o_z.em4  Number of emission lines for Z_EMI (NMBEST) (Note 2)   (meta.number)
SNR 54.1  Median signal to noise ratio per pixel (Note 2)   (em.wl.central;stat.median)
eta    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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