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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/A+A/624/A63
  W51 OB stars NIR spectroscopy (Bik+, 2019) Query spectra/fits /fits
spectrum/fits
spectrum
Post annotation
img(gal)
1.J/A+A/624/A63/listSpectroscopically classified OB stars in W51 (table 3) with spectra[spectrum/fits]
spectrum
(16 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  No   [1/16] Seauential number (meta.id)
  n_No (char) [ac] Note on No (Note 1)   (meta.note)
  ObsID (char) Observation ID (meta.id;obs)
  Field (char) Field designation (meta.id;meta.main)
  RAJ2000 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  Jmag mag SOFI/NTT J magnitude (phot.mag;em.IR.J)
  e_Jmag mag rms uncertainty on Jmag (stat.error;phot.mag;em.IR.J)
  Hmag mag SOFI/NTT H magnitude (phot.mag;em.IR.H)
  e_Hmag mag rms uncertainty on Hmag (stat.error;phot.mag;em.IR.H)

ALL cols
    
 (i)indexed column
  Ksmag mag SOFI/NTT Ks magnitude (phot.mag;em.IR.K)
  e_Ksmag mag rms uncertainty on Ksmag (stat.error;phot.mag;em.IR.K)
  SpType (char) Spectral type (Note 2)   (src.spType)
  sp  Show the spectrum (meta.ref.url)
spectrum/fits
  Nx  Number of pixels along X-axis (meta.number)
  Obs.date s (n)Observation date (time.epoch;obs)
  blambda 0.1nm Lower value of wavelength interval (em.wl)
  Blambda 0.1nm Upper value of wavelength interval (em.wl)
  dlambda 0.1nm Wavelength resolution (spect.resolution)
  size Kibyte Size of FITS file (phys.size;meta.fits)
  FileName (char) Name of the fits spectrum in subdirectory fits (meta.id;meta.fits)
spectrum
  AssocData (char) Associated Data web page (meta.ref.url)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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