| B/wds/wds | The Washington Visual Double Star Catalog (Mason+ 2001-2020) The Washington Double Star Catalog (main part) (155511 rows) | recno=21718 |
| Column | Value | Explain (UCD) | |
| _RAJ2000 | 04 20 57.5000 | "h:m:s" | Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) |
| _DEJ2000 | +50 15 17.400 | "d:m:s" | Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) |
| _RAB1950 | 04 17 11.2358 | "h:m:s" | Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) |
| _DEB1950 | +50 08 10.496 | "d:m:s" | Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) |
| _Glon | 153.3586872 | deg | Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon) |
| _Glat | +0.1864001 | deg | Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat) |
| 21718recno | 21718 | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) | |
| WDS | 04210+5015 | (i) WDS name (based on J2000 position) (meta.id;meta.main) | |
| Disc | S 445 | Discoverer Code (1 to 4 letters) and Number (Note 5) (meta.id) | |
| Comp | AB | Components when more than 2 (Note 1) (meta.code.multip) | |
| Obs1 | 1823 | yr | Date of first satisfactory observation (time.epoch) |
| Obs2 | 2017 | yr | Date of last satisfactory observation (time.epoch) |
| Nobs | 34 | Number of Observations (up to 9999) (meta.number) | |
| pa1 | 327 | deg | Position Angle at date Obs1 (Note 2) (pos.posAng) |
| pa2 | 328 | deg | Position Angle at date Obs2 (Note 2) (pos.posAng) |
| sep1 | 75.2 | arcsec | Separation at date Obs1 (pos.angDistance;src.orbital) |
| sep2 | 71.00 | arcsec | Separation at date Obs12 (pos.angDistance;src.orbital) |
| mag1 | 7.310 | mag | Magnitude of First Component (phot.mag;em.opt) |
| mag2 | 8.19 | mag | Magnitude of Second Component (phot.mag;em.opt) |
| SpType | K2 | Spectral Type (Primary/Secondary) (src.spType) | |
| pmRA1 | 0 | mas/yr | Primary Proper Motion (RA) (pos.pm;pos.eq.ra) |
| pmDE1 | -4 | mas/yr | Primary Proper Motion (Dec) (pos.pm;pos.eq.dec) |
| pmRA2 | 8 | mas/yr | Secondary Proper Motion (RA) (pos.pm;pos.eq.ra) |
| pmDE2 | -21 | mas/yr | Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec) |
| DM | +49 1162 | Durchmusterung Number (Note 3) (meta.id) | |
| Notes | N | [B-Z ] Notes about the binary (Note 4) (meta.note) | |
| n_RAJ2000 | [!P] indicates a position derived from WDS name (meta.note) | ||
| RAJ2000 | 04 20 57.50 | "h:m:s" | (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main) |
| DEJ2000 | +50 15 17.4 | "d:m:s" | (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main) |
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