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VizieR

  
J/A+AS/132/155
  Main-sequence and subgiants ROSAT data (Huensch+ 1998)
ReadMe+ftp
1998A&AS..132..155H
Similar Catalogs
Post annotation 		  
1.J/A+AS/132/155/table2RASS detections of BSC late-type main-sequence stars (980 rows)
The column HR provides a direct link to the Bright Star data

Simple ConstraintList Of Constraints
 
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)
  n_HRName (char) [*] Note on star (Note 1)   (meta.note)
  HRName  Bright Star Catalogue (Cat. V/50) number (meta.id;meta.main)
  HD  Henry Draper Catalogue (Cat. III/135) number (meta.id)
  Name (char) Star's name (meta.id)
  Vmag mag V magnitude (phot.mag;em.opt.V)
  B-V mag B-V colour index (phot.color;em.opt.B;em.opt.V)
  SpType (char) MK spectral classification (src.spType)
  Dist pc (n) Distance (pos.distance)
  Binary (char) Binarity flag (Note 2)   (meta.code)
  ExpTime s Effective exposure time (time.duration;obs.exposure)
  Count ct/s Mean PSPC count rate (phot.count;em.X-ray)
  e_Count ct/s Error of PSPC count rate (stat.error)
  LEx  Likelihood of existence (stat.likelihood)
  Delta arcsec Offset between optical and X-ray position (pos.angDistance)
  HR  Hardness Ratio = (H-S)/(H+S) (phot.flux;arith.ratio)
  e_HR  Error of Hardness Ratio (stat.error)
  FX 10-17W/m2Apparent X-ray flux (0.1-2.4 keV) (phot.flux;em.X-ray)
  LX 10+20W (n) X-ray luminosity (phys.luminosity;em.X-ray)

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