| Column | Value | | Explain (UCD) |
| _RAJ2000 | 00 42 28.8 | "h:m:s" | Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data) (pos.eq.ra) (POS_EQ_RA) |
| _DEJ2000 | +41 17 50 | "d:m:s" | Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data) (pos.eq.dec) (POS_EQ_DEC) |
| _RAB1950 | 00 39 44.6 | "h:m:s" | Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data) (pos.eq.ra) (POS_EQ_RA) |
| _DEB1950 | +41 01 24 | "d:m:s" | Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data) (pos.eq.dec) (POS_EQ_DEC) |
| _Glon | 121.1232 | deg | Galactic longitude (computed by VizieR, not part of the original data) (pos.galactic.lon) (POS_GAL_LON) |
| _Glat | -21.5431 | deg | Galactic latitude (computed by VizieR, not part of the original data) (pos.galactic.lat) (POS_GAL_LAT) |
| 1777recno | 1777 | | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD) |
|
| 1RXS | J004241.8+411535 | | 1RXS source name (meta.id;meta.main) (ID_MAIN) |
| Rank | 348 | | Rank in correlation list for the source (stat.correlation) (STAT_CORRELATION) |
| sourceID | NBol 102 | | Source identification (see also r_sourceID) (meta.id) (ID_MAIN:1) |
| RAJ2000 | 010.6200 | deg | (i) [0/360] Right ascension (J2000) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN) |
| DEJ2000 | +41.2972 | deg | (i) Declination (J2000) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| Sep | 199 | arcsec | Separation (pos.angDistance) (POS_ANG_DIST_GENERAL) |
| PA | 313 | deg | [0/360] Position angle (pos.posAng) (POS_POS-ANG) |
| r_sourceID | SIMBAD | | Source catalogue (see file " refs.dat") (meta.ref;pos.frame) (REFER_CODE) |
| bandPos | o | | [oexr] Origin of the source position (Note 1)
(instr.bandwidth) (INST_BANDWIDTH) |
| Type | undefined | | Type or class of object (src.class) (CLASS_OBJECT) |
| fxfopt | | | Ratio of X-ray to optical flux f_X / f_opt (phot.flux;arith.ratio) (PHOT_FLUX_RATIO) |
| l_vmag | | | Limit flag on vmag (meta.code.error) (CODE_LIMIT) |
| vmag | | mag | Visual magnitude (phot.mag;em.opt.V) (PHOT_MAG_V) |
| bmag | | mag | Blue magnitude (phot.mag;em.opt.B) (PHOT_MAG_B) |
| rmag | | mag | Red magnitude (phot.mag;em.opt.R) (PHOT_MAG_R) |
| b-r | | mag | (blue-red) colour (phot.color;em.opt.B;em.opt.R) (PHOT_CI_B-R) |
| b-v | | mag | (blue-visual) colour (phot.color;em.opt.B;em.opt.V) (PHOT_CI_B-V) |
| u-b | | mag | (ultraviolet-blue) colour (phot.color;em.opt.U;em.opt.B) (PHOT_CI_U-B) |
| var | | | Variability flag (meta.code;src.var) (CODE_VARIAB) |
| n_z | | | [*>] Note on z (meta.note) (NOTE) |
| z | | | Redshift (from PRI or SIMBAD) (src.redshift) (REDSHIFT_HC) |
| Vr | | km/s | Radial velocity (from SIMBAD only) (spect.dopplerVeloc) (VELOC_HC) |
| dist | | kpc | Distance (pos.distance;pos.heliocentric) (POS_GAL_HC) |
| Com | | | Comments (meta.note) (REMARKS) |
| IncDate | 1999-02-15 | "Y:M:D" | Date when source was included (time.epoch) (TIME_DATE) |
| UpdDate | | "Y:M:D" | Date when source properties were changed (time.epoch) (TIME_DATE) |
