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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/AJ/122/1486
  NGC 2451A proper motions and membership (Platais+, 2001)
Post annotation
img(gal)
1.J/AJ/122/1486/table1(c)Astrometry and photometry for probable cluster members in NGC 2451A (136 rows)
2.J/AJ/122/1486/table3Radial velocities (67 rows)
3.J/AJ/122/1486/spm(c)Catalog of positions, relative proper motions and BV photographic photometry in the region of open cluster NGC 2451 (5868 rows)
4.J/AJ/122/1486/ccd(c)Catalog of CCD BV photometry in the region of open cluster NGC 2451 (14836 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (1+4)B-V mag The (B-V) color (phot.color;em.opt.B;em.opt.V)
  (1)DEJ2000 "d:m:s" (i) Declination (J2000, epoch J2000) (Note 1)   (pos.eq.dec;meta.main)
  (1+3)o_Vmag  Number of observations for Vmag (meta.number)
   (1+2+3)PKB  Running identification number, Cl* NGC 2451 PKB NNNNN in Simbad (meta.id;meta.main)
  (1)pmX mas/yr Relative proper motion along X (Note 2)   (pos.pm;pos.cartesian.x)
  (1)pmY mas/yr Relative proper motion along Y (Note 2)   (pos.pm;pos.cartesian.y)
  (1)Prob % Cluster membership probability (stat)
  (1)RAJ2000 "h:m:s" (i) Right Ascension (J2000, epoch J2000) (Note 1)   (pos.eq.ra;meta.main)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)r_Vmag (char) [aeu] Source of Vmag (Note 3)   (meta.ref;pos.frame)
  (1+3+4)Vmag mag The Johnson V band magnitude (phot.mag;em.opt.V)

ALL cols
    
 (i)indexed column
  (1)Will  (n) The Williams (1967MNSSA..26...30W) number, NGC 2451 NNN in Simbad (meta.id)
  (2)HJD d Heliocentric Julian date (time.epoch)
  (2)HRV km/s Heliocentric radial velocity (spect.dopplerVeloc;pos.heliocentric)
  (2)Memb (char) Membership status based on membership probability (Note 2)   (meta.code.member)
  (2)n_HRV (char) [a] indicates a broad cross-correlation peak (meta.note)
  (3)Bmag mag (n) Photographic B-magnitude (if missing then set to 0.00) (phot.mag;em.opt.B)
  (3)B-Vc mag (n) CCD B-V color (if missing then set to -1.000) (phot.color;em.opt.B;em.opt.V)
  (3+4)_DE.icrs deg (n)(i) Declination (ICRS) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
  (3)DErad deg (i) Declination for the epoch 1991.25 and equinox 2000.0 (pos.eq.dec;meta.main)
  (3)e_Bmag mag Estimated standard error of B-magnitude (stat.error;phot.mag;em.opt.B)
  (3)e_B-Vc mag IRAF generated error in CCD B-V color (stat.error;phot.color;em.opt.B)
  (3)e_DErad mas Estimated standard error in declination (stat.error)
  (3)e_pmDE mas/yr Estimated standard error in declination's proper motion (stat.error;pos.pm;pos.eq.dec)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)e_pmRA mas/yr Estimated standard error in right ascension's proper motion (stat.error;pos.pm;pos.eq.ra)
  (3)e_RArad mas Estimated standard error in right ascension multiplied by cos(DE) (stat.error)
  (3+4)e_Vmag mag Estimated standard error of V-magnitude (stat.error;phot.mag;em.opt.V)
  (3)e_Vmagc mag IRAF generated error in CCD V-magnitude (stat.error;phot.mag;em.opt.V)
  (3+4)Nframe  (n) [0/4] Number of frames per star (Note G1)   (meta.number)
  (3)o_Bmag  The number of grating images per star detected on blue plates (grating image pairs are counted as one image) (meta.number)
  (3)pmDE mas/yr Relative proper motion in declination (pos.pm;pos.eq.dec)
  (3)pmRA mas/yr Relative proper motion in right ascension multiplied by cos(DE) (pos.pm;pos.eq.ra)
  (3+4)_RA.icrs deg (n)(i) Right ascension (ICRS) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
  (3)RArad deg (i) Right ascension for the epoch 1991.25 and in the ICRS reference system (i.e. equinox 2000.0) (pos.eq.ra;meta.main)
  (3)Vmagc mag (n) CCD V-magnitude (if missing then set to -1.000) (phot.mag;em.opt.V)
  (3)Xpos mm X position (Note 1)   (pos.cartesian.x;instr.plate)
  (3)Ypos mm Y position (Note 1)   (pos.cartesian.y;instr.plate)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (4)DDE arcsec "CCD-USNOA2.0" (I/252) coordinate difference in declination (stat.fit.residual;pos.eq.dec;arith.diff)
  (4)DE1996 deg (i) Declination (mean epoch=1996.6, equinox J2000.0) (pos.eq.dec;meta.main)
  (4)DRA arcsec "CCD-USNOA2.0" (I/252) coordinate difference in right ascension multiplied by cos(DE) (stat.fit.residual;pos.eq.ra;arith.diff)
  (4)e_B-V mag IRAF generated error in CCD B-V color (stat.error;phot.color;em.opt.B)
  (4)RA1996 deg (i) Right ascension (mean epoch=1996.6, equinox J2000.0) (pos.eq.ra;meta.main)
  (4)Seq  Object identifier (Note 1)   (meta.id;meta.main)

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