| I/284/out | The USNO-B1.0 Catalog (Monet+ 2003) The Whole-Sky USNO-B1.0 Catalog of 1,045,913,669 sources (1045175762 rows) | USNO-B1.0===1108-0251286 |
Note:
The USNO-B Catalog presents positions, proper motions,
magnitudes un blue, red and infrared, as well as star/galaxy estimators
for 1,045,175,762 objects derived from 3,648,832,040 separate observations.
The data were taken from scans of 7,435 Schmidt plates
taken from various sky surveys during the last 50 years.
USNO-B1.0 catalog was created by Dave Monet and collaborators
at http://www.nofs.navy.mil/data/fchpix/
Note that the star/galaxy estimators may be mixed up
in dense regions.
| Column | Value | Explain (UCD) | |
| _RAJ2000 | 16 08 13.79472 | "h:m:s" | Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) |
| _DEJ2000 | +20 49 02.6220 | "d:m:s" | Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) |
| _RAB1950 | 16 06 02.35869 | "h:m:s" | Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) |
| _DEB1950 | +20 56 56.6870 | "d:m:s" | Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) |
| _Glon | 035.98863906 | deg | Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon) |
| _Glat | +44.88183929 | deg | Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat) |
| USNO_B1_0 | 1108-0251286 | (i) Designation of the object (Note 1) (meta.id;meta.main) | |
| Tycho-2 | Designation in the Tycho-2 Catalog I/259 (meta.id) | ||
| RAJ2000 | 242.057478 | deg | (i) Right Ascension at Eq=J2000, Ep=J2000 (Note 2) (pos.eq.ra;meta.main) |
| DEJ2000 | +20.817395 | deg | (i) Declination at Eq=J2000, Ep=J2000 (Note 2) (pos.eq.dec;meta.main) |
| e_RAJ2000 | 369 | mas | Mean error on RAdeg*cos(DEdeg) at Epoch (stat.error;pos.eq.ra) |
| e_DEJ2000 | 248 | mas | Mean error on DEdeg at Epoch (stat.error;pos.eq.dec) |
| Epoch | 1976.6 | yr | Mean epoch of observation (Note 2) (time.epoch;obs) |
| pmRA | 34 | mas/yr | Proper motion in RA (relative to YS4.0) (pos.pm;pos.eq.ra) |
| pmDE | -6 | mas/yr | Proper motion in DE (relative to YS4.0) (pos.pm;pos.eq.dec) |
| muPr | 8 | 0.1 | Total Proper Motion probability (Note 7) (stat.probability) |
| e_pmRA | 12 | mas/yr | Mean error on pmRA (stat.error;pos.pm;pos.eq.ra) |
| e_pmDE | 8 | mas/yr | Mean error on pmDE (stat.error;pos.pm;pos.eq.dec) |
| fit_RA | 4 | 100mas | Mean error on RA fit (stat.error) |
| fit_DE | 2 | 100mas | Mean error on DE fit (stat.error) |
| Ndet | 3 | [0,5] Number of detections (Note 7) (meta.number) | |
| Flags | ... | [MsY.] Flags on object (Note 3) (meta.code) | |
| B1mag | mag | (i) First blue magnitude (phot.mag;em.opt.B) | |
| B1C | source of photometric calibration (Note 4) (instr.calib) | ||
| B1S | Survey number (see "Surveys" section below) (meta.id) | ||
| B1f | Field number in survey (obs.field) | ||
| B1s/g | Star-galaxy separation (Note 6) (src.class.starGalaxy) | ||
| B1xi | arcsec | Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) | |
| B1eta | arcsec | Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) | |
| R1mag | 19.32 | mag | (i) First red magnitude (phot.mag;em.opt.R) |
| R1C | 2 | source of photometric calibration (Note 4) (instr.calib) | |
| R1S | 1 | Survey number (see "Surveys" section below) (meta.id) | |
| R1f | -99 | Field number in survey (obs.field) | |
| R1s/g | 10 | Star-galaxy separation (Note 6) (src.class.starGalaxy) | |
| R1xi | -0.04 | arcsec | Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) |
| R1eta | 0.02 | arcsec | Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) |
| B2mag | 20.53 | mag | (i) Second blue magnitude (phot.mag;em.opt.B) |
| B2C | 2 | source of photometric calibration (Note 4) (instr.calib) | |
| B2S | 2 | Survey number (see "Surveys" section below) (meta.id) | |
| B2f | -99 | Field number in survey (obs.field) | |
| B2s/g | 4 | Star-galaxy separation (Note 6) (src.class.starGalaxy) | |
| B2xi | -0.27 | arcsec | Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) |
| B2eta | 0.17 | arcsec | Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) |
| R2mag | 19.78 | mag | (i) Second red magnitude (phot.mag;em.opt.R) |
| R2C | 2 | source of photometric calibration (Note 4) (instr.calib) | |
| R2S | 3 | Survey number (see "Surveys" section below) (meta.id) | |
| R2f | -99 | Field number in survey (obs.field) | |
| R2s/g | 3 | Star-galaxy separation (Note 6) (src.class.starGalaxy) | |
| R2xi | 0.30 | arcsec | Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) |
| R2eta | -0.21 | arcsec | Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) |
| Imag | mag | (i) Infrared (N) magnitude (phot.mag;em.opt.I) | |
| IC | source of photometric calibration (Note 4) (instr.calib) | ||
| IS | Survey number (see "Surveys" section below) (meta.id) | ||
| If | Field number in survey (obs.field) | ||
| Is/g | Star-galaxy separation (Note 6) (src.class.starGalaxy) | ||
| Ixi | arcsec | Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) | |
| Ieta | arcsec | Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) | |
