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VizieR

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VII/250
  The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)
spectrum/gif
Post annotation
img(gal)
1.VII/250/2dfgrs(c)Best observations of 2dFGRS (low-quality redshifts are written in red) (245591 rows)
2.VII/250/spectraObserved spectra (low-quality redshifts are written in red) (269937 rows)
3.VII/250/parent(c)Details of source observations (low-quality redshifts are written in red) (407834 rows)
4.VII/250/photo(c)Photometric catalog (382323 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)SeqNum  (i) 2dFGRS serial number (SEQNUM) (meta.id)
  (1)o_SeqNum   [1,6] Number of spectra obtained (meta.number)
  (1+2+4)Name (char) (i) 2dFGRS name (NAME) (meta.id;meta.main)
  (1+3+4)UKST  UKST plate number (IFIELD) (obs.field)
  (1)RAJ2000 "h:m:s" (i) Right ascension (J2000, hours) (pos.eq.ra;meta.main)
  (1)DEJ2000 "d:m:s" (i) Declination (J2000, degrees) (pos.eq.dec;meta.main)
  (1+3+4)Bjmag mag Final bj magnitude (BJG) (Note 1)   (phot.mag;em.opt.B)
  (1+3+4)Bjsel mag Final bj magnitude corrected from extinction (BJSEL) (Note G2)   (phot.mag;em.opt.B)
  (1+4)Bjmag.o mag Original bj magnitude (BJG_OLD) (Note 1)   (phot.mag;em.opt.B)
  (1+4)Bjsel.o mag Original bj magnitude corrected from extinction (BJSELOLD) (phot.mag;em.opt.B)

ALL cols
    
 (i)indexed column
  (1)Gext mag Galactic extinction value (GALEXT) (phys.absorption)
  (1)Bjmag.S mag (n) SuperCosmos bj magnitude (SB_BJ) (Note 1)   (phot.mag;em.opt.B)
  (1)Rmag.S mag (n) SuperCosmos R magnitude (SR_R) (Note 1)   (phot.mag;em.opt.R)
  (1+2)ObsRun (char) Observation run of best spectrum (OBSRUN) (obs.param;obs)
  (1+2+3)z.obs  (n) Best redshift (observed) (Z) (Note 2)   (src.redshift;pos.heliocentric)
  (1+2+3)z  (n) Best redshift (heliocentric) (Z_HELIO) (Note 2)   (src.redshift)
  (1+2+3)q_z   [1,5] Redshift quality for best spectrum (reliable redshifts have quality≥3) (Note 2)   (meta.code.qual;src.redshift)
  (1+2)n_z  Redshift type (abs=1, emi=2, man=3) (ABEMMA) (meta.note)
  (1+2)z.abs  (n) Cross-correlation redshift (Z_ABS) (Note 2)   (src.redshift;pos.heliocentric)
  (1+2)T  Cross-correlation template (KBESTR) (Note 2)   (stat.fit.param)
  (1+2)Rx  (n) Cross-correlation R value (R_CRCOR) (Note 2)   (stat.fit.param)
  (1+2)z.em  (n) Emission redshift (Z_EMI) (Note 2)   (src.redshift;pos.heliocentric)
  (1+2)o_z.em  Number of emission lines for Z_EMI (NMBEST) (Note 2)   (meta.number)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1+2)SNR  Median signal to noise ratio per pixel (Note 2)   (em.wl.central;stat.median)
  (1+2+3)eta  (n) Eta spectral type parameter from best spectrum (ETA_TYPE) (Note G1)   (stat.fit.param)
  (1)Sp (char) Show the Image and annotated Spectrum of this 2dF Object (meta.ref.url)
  (2)ObsDate "Y:M:D" (n)UT date of observation (UTDATE) (time.epoch;obs)
  (3)RArad deg (i) Right ascension (B1950), radians (pos.eq.ra;meta.main)
  (3)DErad deg (i) Declination (B1950), radians (pos.eq.dec;meta.main)
  (3)bjlim mag (n) 2dFGRS bj magnitude limit of this area (Note 2)   (phot.mag)
  (3)Bj.ori mag Original bj magnitude with extinction correction (BJSELOLD) (phot.mag;em.opt.B)
  (3)Bj.old mag Original bj magnitude without extinction correction (BJG_OLD) (phot.mag;em.opt.B)
  (3)obsfld  (n) Observed field number (OBSFLD(4:6)) (meta.id;obs.field)
  (3)GRSdate "Y:M:D" (n) Observation date (GRSDATE) (time.epoch)
  (3)Pl  (n) [0,1] 2dF plate (0 or 1) (PLATE) (meta.note)
  (3+4)e  Eccentricity of the image (ECCENT) (src.orbital.eccentricity)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4)ora deg [0,180[ Orientation angle E-(N)-W (ORIENT) (pos.posAng)
  (3+4)jon  (n) Eyeball classification (JON) (Note G3)   (src.morph)
  (3)area pix Isophotal area in pixels (AREA) (phys.angSize)
  (3)_RA.icrs deg (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
  (3)_DE.icrs deg (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  (4)RAB1950 "h:m:s" (i) Right Ascension B1950 (pos.eq.ra;meta.main)
  (4)DEB1950 "d:m:s" (i) Declination B1950 (pos.eq.dec;meta.main)
  (4)psi  psi classification parameter (PROB) (Note 2)   (src.morph.param)
  (4)k  k classification parameter = k/k_star (PARK) (src.morph.param)
  (4)mu  mu classification parameter = mu/mu_star (PARMU) (src.morph.param)
  (4)Cl   [-4,2] Final classification (IGAL) (Note 3)   (src.class.starGalaxy)
  (4)Area pix Isophotal area in pixels (AREA) (phys.area)
  (4)Xpos pix Bj plate position in 8 micron pixels (X_BJ) (pos.cartesian.x;instr.plate)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (4)Ypos pix Bj plate position in 8 micron pixels (Y_BJ) (pos.cartesian.y;instr.plate)
  (4)dX pix (n) Distortion difference (X(Bj)-X(R))*100 (DX) (pos;arith.diff)
  (4)dY pix (n) Distortion difference (Y(Bj)-Y(R))*100 (DY) (pos;arith.diff)
  (4)Rmag mag Unmatched APM 'total' mag (RMAG) (phot.mag;em.opt.R)
  (4)Pmag mag (n) Unmatched raw APM profile integrated magnitude (PMAG) (phot.mag;em.opt.B)
  (4)Fmag mag (n) Unmatched raw APM 2" profile integrated magnitude (FMAG) (phot.mag;em.opt.B)
  (4)Smag mag (n) Unmatched raw stellar mag from APMCAL (SMAG) (phot.mag;em.opt.B)
  (4)Igal  Galaxy number in UKST field (IGFIELD) (meta.id;obs.field)
  (4)Bjmag.1 mag bj magnitude in 100k (VII/226) (100_BJG) (Note 1)   (phot.mag;em.opt.B)
  (4)Bjsel.1 mag bj magnitude in 100k release (VII/226) with extinction correction (100BJSEL) (phot.mag;em.opt.B)
  (4)_RA.icrs "h:m:s" (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
  (4)_DE.icrs "d:m:s" (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
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