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The USNO-B1.0 Catalog (Monet+ 2003)

The Whole-Sky USNO-B1.0 Catalog of 1,045,913,669 sources (1045175762 rows)

USNO-B1=0765-0000986

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.

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*Column*	*Value*		*Explain (UCD)*
_RAJ2000	02 59 28.46880	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 44 52.1016	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 56 54.19137	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 32 57.7982	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.01132813	deg	Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.47460850	deg	Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat) (POS_GAL_LAT)

USNO-B1.0	0907-0031668		⁽ⁱ⁾ Designation of the object (Note 1) (meta.id;meta.main) (ID_MAIN)
Tycho-2			Designation in the Tycho-2 Catalog I/259 (meta.id) (ID_ALTERNATIVE)
RAJ2000	044.868620	deg	⁽ⁱ⁾ Right Ascension at Eq=J2000, Ep=J2000 (Note 2) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
DEJ2000	+00.747806	deg	⁽ⁱ⁾ Declination at Eq=J2000, Ep=J2000 (Note 2) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
e_RAJ2000	994	mas	Mean error on RAdeg*cos(DEdeg) at Epoch (stat.error;pos.eq.ra) (ERROR)
e_DEJ2000	999	mas	Mean error on DEdeg at Epoch (stat.error;pos.eq.dec) (ERROR)
Epoch	1993.3	yr	Mean epoch of observation (Note 2) (time.epoch;obs) (TIME_EPOCH)
pmRA	0	mas/yr	Proper motion in RA (relative to YS4.0) (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pmDE	0	mas/yr	Proper motion in DE (relative to YS4.0) (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
muPr	0	0.1	Total Proper Motion probability (Note 7) (stat.probability) (STAT_PROBABILITY)
e_pmRA	0	mas/yr	Mean error on pmRA (stat.error;pos.pm;pos.eq.ra) (ERROR)
e_pmDE	0	mas/yr	Mean error on pmDE (stat.error;pos.pm;pos.eq.dec) (ERROR)
fit_RA	9	100mas	Mean error on RA fit (stat.error) (FIT_ERROR)
fit_DE	9	100mas	Mean error on DE fit (stat.error) (FIT_ERROR)
Ndet	2		[0,5] Number of detections (Note 7) (meta.number) (NUMBER)
Flags	...		[MsY.] Flags on object (Note 3) (meta.code) (CODE_MISC)
B1mag		mag	⁽ⁱ⁾ First blue magnitude (phot.mag;em.opt.B) (PHOT_PHG_B)
B1C			source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
B1S			Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
B1f			Field number in survey (obs.field) (ID_FIELD)
B1s/g			Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
B1xi		arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
B1eta		arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)
R1mag		mag	⁽ⁱ⁾ First red magnitude (phot.mag;em.opt.R) (PHOT_PHG_R)
R1C			source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
R1S			Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
R1f			Field number in survey (obs.field) (ID_FIELD)
R1s/g			Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
R1xi		arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
R1eta		arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)
B2mag		mag	⁽ⁱ⁾ Second blue magnitude (phot.mag;em.opt.B) (PHOT_PHG_B)
B2C			source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
B2S			Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
B2f			Field number in survey (obs.field) (ID_FIELD)
B2s/g			Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
B2xi		arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
B2eta		arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)
R2mag	20.34	mag	⁽ⁱ⁾ Second red magnitude (phot.mag;em.opt.R) (PHOT_PHG_R)
R2C	2		source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
R2S	3		Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
R2f	-99		Field number in survey (obs.field) (ID_FIELD)
R2s/g	1		Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
R2xi	0.99	arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
R2eta	-1.54	arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)
Imag	18.60	mag	⁽ⁱ⁾ Infrared (N) magnitude (phot.mag;em.opt.I) (PHOT_PHG_I)
IC	2		source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
IS	8		Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
If	-99		Field number in survey (obs.field) (ID_FIELD)
Is/g			Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
Ixi	1.00	arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
Ieta	1.53	arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)