| 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) | n_Trap | (char) | [*] indicates corrections made at CDS (see the "History" section below) (meta.note) (NOTE) |
| | |  (ALL) | Trap | | (i) Trapezium system number ([AC2000b] Trap NNN) (meta.id;meta.main) (ID_MAIN) |
| | | (1+3) | RA1900 | "h:m:s" | (i) Right Ascension (1900) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN) |
| | | (1+3) | DE1900 | "d:m:s" | (i) Declination (1900) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| | | (1+3) | OName | (char) | Other name (ADS ... = no ADS name) (meta.id) (ID_ALTERNATIVE) |
| | | (1) | u_OName | (char) | [?] For Trap 237, the HD identification doesn't match the position (meta.code.error) (CODE_ERROR) |
| | | (1+2) | Concl | (char) | Conclusions about the group (meta.note;pos.lg) (REMARKS) |
| | | (1) | E(B-V) | mag | (n) Reddening (phot.color.excess) (PHOT_COLOR_EXCESS) |
| | | (1) | f_E(B-V) | (char) | [:?A] Flag on E(B-V) (Note 1)
(meta.code) (CODE_MISC) |
| | | (1) | DMod | mag | (n) Distance modulus (phot.mag.distMod) (PHOT_DIST-MOD) |
ALL cols | | | |
| | | (1) | f_DMod | (char) | [?A] Flag on DMod (Note 1)
(meta.code) (CODE_MISC) |
| | | (1) | _RA.icrs | "h:m:s" | (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra) (POS_EQ_RA_OTHER) |
| | | (1) | _DE.icrs | "d:m:s" | (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec) (POS_EQ_DEC_OTHER) |
| | | (2) | ID1 | | Identification number for Figure 1 (meta.id) (ID_ALTERNATIVE) |
| | | (2) | ID2 | (char) | Identification letter from other sources (meta.id) (ID_ALTERNATIVE) |
| | | (2+3) | Vmag | mag | (n) V band magnitudes (phot.mag;em.opt.V) (PHOT_JHN_V) |
| | | (2) | B-V | mag | (n) B-V color (phot.color;em.opt.B;em.opt.V) (PHOT_JHN_B-V) |
| | | (2) | U-B | mag | (n) U-B color (phot.color;em.opt.U;em.opt.B) (PHOT_JHN_U-B) |
| | | (2) | MKClass | (char) | MK classification (meta.code.class;src.class) (SPECT_TYPE_MK) |
| | | (2) | date0 | yr | Date of earlier astrometric measurements (time.epoch) (TIME_DATE) |
| | | (2) | date1 | yr | (n) If present, indicates measurements obtained from date0 to date1 (time.epoch) (TIME_DATE) |
| | | (2) | n_sep0 | (char) | Star pair that sep0 and pa0 refer (meta.note) (NOTE) |
| | | (2) | sep0 | arcsec | (n) Old angular separation relative to the first star (pos.angDistance;src.orbital) (ORBIT_SEPARATION) |
ALL cols | | | |
| | | (2) | f_sep0 | (char) | [v:] Flag on sep0 (Note 1)
(meta.code) (CODE_MISC) |
| | | (2) | pa0 | deg | (n) Previous position angle relative to the first star (pos.posAng) (POS_POS-ANG) |
| | | (2) | f_pa0 | (char) | [v orb] Flag on OPA (Note 1)
(meta.code) (CODE_MISC) |
| | | (2) | Date | yr | Date of observations from this work (time.epoch) (TIME_DATE) |
| | | (2) | n_sep | (char) | Star pair that sep and PA refer (meta.note) (NOTE) |
| | | (2) | sep | arcsec | (n) This work's angular separation relative to the first star (pos.angDistance;src.orbital) (ORBIT_SEPARATION) |
| | | (2) | PA | deg | (n) This work's position angle relative to the first star (pos.posAng) (POS_POS-ANG) |
| | | (3) | Name | (char) | Name of the system (ADS ... = no ADS name) (meta.id) (ID_ALTERNATIVE) |
| | | (3) | RAJ2000 | "h:m:s" | (i) Right Ascension J2000 (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN) |
| | | (3) | DEJ2000 | "d:m:s" | (i) Declination J2000 (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| | | (3) | s | (char) | [MTU] Source of position (Note 1)
(meta.ref;pos.frame) (REFER_CODE) |
| | | (3) | SpType | (char) | MK Spectral classification (src.spType) (SPECT_TYPE_MK) |
| | | (3) | Remarks | (char) | Remarks, from B. Skiff (meta.note) (REMARKS) |
ALL cols | | | |