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=008105
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200000 29 54.2100 "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)
_DEJ2000-34 05 36.100 "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)
_RAB195000 27 26.1116 "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)
_DEB1950-34 22 10.521 "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)
_Glon335.2266111 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-81.6380261 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)
4876recno 4876  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SeqNum008105  (i) 2dFGRS serial number (SEQNUM) (meta.id)
o_SeqNum1   [1,6] Number of spectra obtained (meta.number)
NameTGS557Z216  (i) 2dFGRS name (NAME) (meta.id;meta.main)
UKST350  UKST plate number (IFIELD) (obs.field)
RAJ200000 29 54.21 "h:m:s" (i) Right ascension (J2000, hours) (pos.eq.ra;meta.main)
DEJ2000-34 05 36.1 "d:m:s" (i) Declination (J2000, degrees) (pos.eq.dec;meta.main)
Bjmag19.127 mag Final bj magnitude (BJG) (Note 1)   (phot.mag;em.opt.B)
Bjsel19.085 mag Final bj magnitude corrected from extinction (BJSEL) (Note G2)   (phot.mag;em.opt.B)
Bjmag.o19.120 mag Original bj magnitude (BJG_OLD) (Note 1)   (phot.mag;em.opt.B)
Bjsel.o19.090 mag Original bj magnitude corrected from extinction (BJSELOLD) (phot.mag;em.opt.B)
Gext 0.042 mag Galactic extinction value (GALEXT) (phys.absorption)
Bjmag.S19.140 mag SuperCosmos bj magnitude (SB_BJ) (Note 1)   (phot.mag;em.opt.B)
Rmag.S17.427 mag SuperCosmos R magnitude (SR_R) (Note 1)   (phot.mag;em.opt.R)
ObsRun01NOV  Observation run of best spectrum (OBSRUN) (obs.param;obs)
z.obs 0.2223   Best redshift (observed) (Z) (Note 2)   (src.redshift;pos.heliocentric)
z 0.2222   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 0.2223   Cross-correlation redshift (Z_ABS) (Note 2)   (src.redshift;pos.heliocentric)
T1  Cross-correlation template (KBESTR) (Note 2)   (stat.fit.param)
Rx 8.99   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 13.4  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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