| Column | Value | | Explain (UCD) |
| _RAJ2000 | 18 20 54.1 | "h:m:s" | Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra) (POS_EQ_RA) |
| _DEJ2000 | +72 44 11 | "d:m:s" | Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec) (POS_EQ_DEC) |
| _RAB1950 | 18 21 54.2 | "h:m:s" | Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra) (POS_EQ_RA) |
| _DEB1950 | +72 42 38 | "d:m:s" | Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec) (POS_EQ_DEC) |
| _Glon | 103.4601 | deg | Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON) |
| _Glat | +28.0687 | deg | Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT) |
| 1058recno | 1058 | | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD) |
|
| RA1900 | 18 22.9 | "h:m:s" | (i) RA 1900 (hours) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN) |
| DE1900 | +72 41 | "d:m:s" | (i) DEC1900 (sign) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| Name | 170153 | | First name. Just a number means HD number (Note 1)
(meta.id) (ID_IDENTIFIER) |
| Alias | $\chi$ Dra | | Other Name (Note 1)
(meta.id) (ID_ALTERNATIVE) |
| Eclipse | | | [*] The '*' indicates an eclipsing binary (meta.note) (REMARKS) |
| maxMag | 3.57 | mag | Magnitude at Maximum (phot.mag) (PHOT_MAG_UNDEF) |
| n_maxMag | V | | [VBRP] Type of maxMag magnitude (Note 2)
(meta.note) (NOTE) |
| f_maxMag | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| minMag | | mag | Magnitude at Minimum (phot.mag) (PHOT_MAG_UNDEF) |
| n_minMag | | | [VBRP] Type of minMag magnitude (Note 2)
(meta.note) (NOTE) |
| f_minMag | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| Sp1 | F7V | | Spectral type of Primary (src.spType) (SPECT_TYPE_GENERAL) |
| Sp2 | | | Spectral type of Secondary (if known) (src.spType) (SPECT_TYPE_GENERAL) |
| Period | 280.55000 | | Period, generally in days (see x_Period) (time.period) (TIME_PERIOD) |
| x_Period | | | [y] 'y' if Period expressed in years (meta.unit) (UNITS) |
| f_Period | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| T | 46006.0000 | | Periastron date, generally in JD-2400000 (see x_T indicator) (src.orbital.periastron) (ORBIT_P-ASTRON_DATE) |
| x_T | | | [y] 'y' if periastron T expressed as year. (meta.unit) (UNITS) |
| f_T | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| e1 | 0.45 | | [0/1[ Eccentricity of Primary (src.orbital.eccentricity) (ORBIT_ECCENTRICITY) |
| f_e1 | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| e2 | | | [0/1[ Eccentricity of Secondary, if different (src.orbital.eccentricity) (ORBIT_ECCENTRICITY) |
| omega1 | 121.7 | deg | [0/360[ Angle of periastron of Primary (src.orbital.periastron) (ORBIT_P-ASTRON_ARG) |
| u_omega1 | | | Uncertainty flag (:) (meta.code.error) (CODE_ERROR) |
| f_omega1 | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| omega2 | | deg | [0/360[ Angle of periastron of Secondary (src.orbital.periastron) (ORBIT_P-ASTRON_ARG) |
| u_omega2 | | | Uncertainty flag (:) (meta.code.error) (CODE_ERROR) |
| f_omega2 | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| K(1) | 17.9 | km/s | Orbital semi-amplitude of Primary (phys.size;src.orbital) (ORBIT_RV_S-AMPLITUDE) |
| u_K(1) | | | Uncertainty flag (:) (meta.code.error) (CODE_ERROR) |
| f_K(1) | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| K(2) | 24.6 | km/s | Orbital semi-amplitude of Secondary (phys.size;src.orbital) (ORBIT_RV_S-AMPLITUDE) |
| u_K(2) | | | Uncertainty flag (:) (meta.code.error) (CODE_ERROR) |
| f_K(2) | | | Remark or Note flag (meta.code.error) (CODE_MISC) |
| V(1) | 32.4 | km/s | Systemic Velocity of Primary (phys.veloc) (VELOC_SYST_MISC) |
| u_V(1) | | | Uncertainty flag (:) (meta.code.error) (CODE_ERROR) |
| f_V(1) | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| V(2) | | km/s | Systemic Velocity of Secondary (phys.veloc) (VELOC_SYST_MISC) |
| u_V(2) | | | Uncertainty flag (:) (meta.code.error) (CODE_ERROR) |
| f_V(2) | | | Remark or Note flag (meta.code.error) (CODE_MISC) |
| f_Quality | | | [*] Remark or Note flag (meta.code.error) (CODE_MISC) |
| Quality | a | | [abcdei] Quality letter (Note 3)
(meta.note) (REMARKS) |
| Ref | J.Tomkin \etal , A.J., 93, 1236, 1987. | | Reference (makes use of TeX conventions) (meta.ref) (REFER_CODE) |
