| Show | Sort | Join tables | Column | Constraint | Explain (UCD) |
| | | (ALL) | recno | | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD) |
| | |  (1+2+3) | PKB | | Running identification number, Cl* NGC 2451 PKB NNNNN in Simbad (meta.id;meta.main) (ID_NUMBER) |
| | | (1) | Will | | (n) The Williams (1967MNSSA..26...30W) number, NGC 2451 NNN in Simbad (meta.id) (ID_ALTERNATIVE) |
| | | (1) | RAJ2000 | "h:m:s" | (i) Right Ascension (J2000, epoch J2000) (Note 1)
(pos.eq.ra;meta.main) (POS_EQ_RA_MAIN) |
| | | (1) | DEJ2000 | "d:m:s" | (i) Declination (J2000, epoch J2000) (Note 1)
(pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| | | (1) | pmX | mas/yr | Relative proper motion along X (Note 2)
(pos.pm;pos.cartesian.x) (POS_PM_NON-EQ) |
| | | (1) | pmY | mas/yr | Relative proper motion along Y (Note 2)
(pos.pm;pos.cartesian.y) (POS_PM_NON-EQ) |
| | | (1+3+4) | Vmag | mag | The Johnson V band magnitude (phot.mag;em.opt.V) |
| | | (1) | r_Vmag | (char) | [aeu] Source of Vmag (Note 3)
(meta.ref;pos.frame) |
| | | (1+4) | B-V | mag | The (B-V) color (phot.color;em.opt.B;em.opt.V) |
| | | (1+3) | o_Vmag | | Number of observations for Vmag (meta.number) |
ALL cols | | | |
| | | (1) | Prob | % | Cluster membership probability (stat) |
| | | (2) | HJD | d | Heliocentric Julian date (time.epoch) |
| | | (2) | HRV | km/s | Heliocentric radial velocity (spect.dopplerVeloc;pos.heliocentric) |
| | | (2) | n_HRV | (char) | [a] indicates a broad cross-correlation peak (meta.note) |
| | | (2) | Memb | (char) | Membership status based on membership probability (Note 2)
(meta.code.member) |
| | | (3) | Xpos | mm | X position (Note 1)
(pos.cartesian.x;instr.plate) |
| | | (3) | Ypos | mm | Y position (Note 1)
(pos.cartesian.y;instr.plate) |
| | | (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) (POS_EQ_RA_MAIN) |
| | | (3) | DErad | deg | (i) Declination for the epoch 1991.25 and equinox 2000.0 (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| | | (3) | e_RArad | mas | Estimated standard error in right ascension multiplied by cos(DE) (stat.error) |
| | | (3) | e_DErad | mas | Estimated standard error in declination (stat.error) |
| | | (3) | pmRA | mas/yr | Relative proper motion in right ascension multiplied by cos(DE) (pos.pm;pos.eq.ra) |
| | | (3) | pmDE | mas/yr | Relative proper motion in declination (pos.pm;pos.eq.dec) |
ALL cols | | | |
| | | (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) | e_pmRA | mas/yr | Estimated standard error in right ascension's proper motion (stat.error;pos.pm;pos.eq.ra) |
| | | (3) | e_pmDE | mas/yr | Estimated standard error in declination's proper motion (stat.error;pos.pm;pos.eq.dec) |
| | | (3) | Bmag | mag | (n) Photographic B-magnitude (if missing then set to 0.00) (phot.mag;em.opt.B) |
| | | (3) | e_Bmag | mag | Estimated standard error of B-magnitude (stat.error;phot.mag;em.opt.B) |
| | | (3+4) | e_Vmag | mag | Estimated standard error of V-magnitude (stat.error;phot.mag;em.opt.V) |
| | | (3) | Vmagc | mag | (n) CCD V-magnitude (if missing then set to -1.000) (phot.mag;em.opt.V) |
| | | (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) | e_Vmagc | mag | IRAF generated error in CCD V-magnitude (stat.error;phot.mag;em.opt.V) |
| | | (3) | e_B-Vc | mag | IRAF generated error in CCD B-V color (stat.error;phot.color;em.opt.B) |
| | | (3+4) | Nframe | | (n) [0/4] Number of frames per star (Note G1)
(meta.number) |
| | | (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) (POS_EQ_RA_OTHER) |
| | | (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) (POS_EQ_DEC_OTHER) |
ALL cols | | | |
| | | (4) | Seq | | Object identifier (Note 1)
(meta.id;meta.main) |
| | | (4) | RA1996 | deg | (i) Right ascension (mean epoch=1996.6, equinox J2000.0) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN) |
| | | (4) | DE1996 | deg | (i) Declination (mean epoch=1996.6, equinox J2000.0) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| | | (4) | e_B-V | mag | IRAF generated error in CCD B-V color (stat.error;phot.color;em.opt.B) |
| | | (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) | DDE | arcsec | "CCD-USNOA2.0" (I/252) coordinate difference in declination (stat.fit.residual;pos.eq.dec;arith.diff) |
ALL cols | | | |