VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/AN/341/827
  Magnitude accuracies in pre-telescopic catalogs (Protte+, 2020)
ReadMe+ftp
2020AN....341..827P
Similar Catalogs
Post annotation 		img(gal)
1.J/AN/341/827/brahe(c)Conversion and correction data for brahe magnitudes (938 rows)
2.J/AN/341/827/ptolemy(c)Conversion and correction data for Ptolemy magnitude (992 rows)
3.J/AN/341/827/sufi(c)Conversion and correction data for alSufi magnitudes (990 rows)
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Simple ConstraintList Of Constraints
 
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)HIP  Number of Star in Hipparcos catalog (Cat. I/239) (meta.id;meta.main)
  (1)NoB  Number of Star in Keplers 1627 version of Brahe catalogue (c.f. Verbunt & van Gent, 2010, Cat. J/A+A/516/A28) (meta.id)
   (ALL)mHIP mag Modern Johnson V-magnitude taken from Hipparcos catalog (Cat. I/239) (phot.mag;em.opt.V)
   (ALL)Culm deg Culmination height above horizon for Hven at 1601 C.E. (meta.note)
   (ALL)B-V mag (n) Colour-index B-V taken from Hipparcos catalog (Cat. I/239) (phot.color;em.opt.B;em.opt.V)
   (ALL)Back mag/sr (n) Background brightness (as defined in the paper) (instr.background)
   (ALL)InMW?  (n) [0/1] Is the star within ±10° of the galactic equator (1=yes/0=no) (meta.code)
  (1)mB mag [1-6] Numerical magnitude given by Brahe (phot.mag;em.opt)
   (ALL)qual (char) [b/f] qualifier, added by Brahe: b(righter)/f(ainter) (meta.code.qual)
   (ALL)mOld mag Brahe magnitude with qualifier converted to ±0.5mag (phot.mag;em.opt)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)m mag Brahe magnitude converted to the modern scale by a linear transformation, m=(mOld-0.92)/0.75 (phot.mag;em.opt)
  (1+3)d(B-V)  (n) Corrective term for the colour-dependency linear model (only for stars FAINTER than 2.3mag): d(B-V)=0.11*(B-V)-0.06mag (arith.factor)
  (1+3)d(Ext)  Corrective term for the extinction-effect non-linear model (Note G1)   (arith.factor)
  (1+3)d(beta)  Corrective term for the Background-dependency linear model: d(beta)=-0.37*Back-0.69mag (arith.factor)
  (1+3)m*  Final converted magnitude including all corrective terms, m*=m-d(B-V)-d(Ext)-d(beta) (phot.mag;em.opt)
  (1+3)dm  Magnitude error, dm=m-mHIP (stat.error)
  (1+3)dm*  Corrected magnitude error dm*=m*-mHIP (stat.error)
   (ALL)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
   (ALL)_RA deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
   (ALL)_DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)
  (2)NoP  Number of Star in the Almagest (c.f. Verbunt & van Gent, 2012, Cat. J/A+A/544/A31) (meta.id)
  (2)mP mag [1-6] Numerical magnitude given by Ptolemy (phot.mag;em.opt)
  (2)d(B-V) mag (n) Corrective term for the colour-dependency linear model (only for stars FAINTER than 2.3 mag): d(B-V)=0.11*(B-V)-0.06mag (arith.factor)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)d(Ext) mag Corrective term for the extinction-effect non-linear model (Note G1)   (arith.factor)
  (2)d(beta) mag Corrective term for the background-dependency linear model: d(beta)=-0.37*Back-0.69mag (arith.factor)
  (2)m* mag Final converted magnitude including all corrective terms, m*=m-d(B-V)-d(Ext)-d(beta) (phot.mag;em.opt)
  (2)dm mag Magnitude error dm=m-mHIP (stat.error;phot.mag)
  (2)dm* mag Corrected magnitude error dm*=m*-mHIP (stat.error)
  (3)NoS  Number of Star in Ulugh Begs catalogue (c.f. Verbunt & van Gent, 2012, Cat. J/A+A/544/A31 (meta.id)
  (3)mS mag [1-6] Numerical magnitude given by al-Sufi (phot.mag;em.opt)

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