VizieR

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VizieR

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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)
  -c=004.834553 +19.776049
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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.

ColumnValue  Explain   (UCD)
_r0.312 arcsec Distance from center (004.834553+19.776049)[FK5/J2000], at Epoch=J2000.0 (pos.angDistance)
_RAJ200000 19 20.27808 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+19 46 34.0104 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195000 16 44.66225 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+19 29 54.8480 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon112.67527550 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat-42.45545112 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)

USNO-B1.01097-0003987  (i) Designation of the object (Note 1)   (meta.id;meta.main)
Tycho-2   Designation in the Tycho-2 Catalog I/259 (meta.id)
RAJ2000004.834492 deg (i) Right Ascension at Eq=J2000, Ep=J2000 (Note 2)   (pos.eq.ra;meta.main)
DEJ2000+19.776114 deg (i) Declination at Eq=J2000, Ep=J2000 (Note 2)   (pos.eq.dec;meta.main)
e_RAJ2000 94 mas Mean error on RAdeg*cos(DEdeg) at Epoch (stat.error;pos.eq.ra)
e_DEJ2000 23 mas Mean error on DEdeg at Epoch (stat.error;pos.eq.dec)
Epoch1976.6 yr Mean epoch of observation (Note 2)   (time.epoch;obs)
pmRA -6 mas/yr Proper motion in RA (relative to YS4.0) (pos.pm;pos.eq.ra)
pmDE 2 mas/yr Proper motion in DE (relative to YS4.0) (pos.pm;pos.eq.dec)
muPr7 0.1 Total Proper Motion probability (Note 7)   (stat.probability)
e_pmRA 3 mas/yr Mean error on pmRA (stat.error;pos.pm;pos.eq.ra)
e_pmDE 0 mas/yr Mean error on pmDE (stat.error;pos.pm;pos.eq.dec)
fit_RA1 100mas Mean error on RA fit (stat.error)
fit_DE0 100mas Mean error on DE fit (stat.error)
Ndet5   [0,5] Number of detections (Note 7)   (meta.number)
Flags..Y   [MsY.] Flags on object (Note 3)   (meta.code)
B1mag19.52 mag (i) First blue magnitude (phot.mag;em.opt.B)
B1C1   source of photometric calibration (Note 4)   (instr.calib)
B1S0   Survey number (see "Surveys" section below) (meta.id)
B1f405   Field number in survey (obs.field)
B1s/g 8   Star-galaxy separation (Note 6)   (src.class.starGalaxy)
B1xi 0.10 arcsec Residual in X direction (Note 5)   (stat.fit.residual;pos.eq.ra;arith.diff)
B1eta -0.02 arcsec Residual in Y direction (Note 5)   (stat.fit.residual;pos.eq.dec;arith.diff)
R1mag17.46 mag (i) First red magnitude (phot.mag;em.opt.R)
R1C1   source of photometric calibration (Note 4)   (instr.calib)
R1S1   Survey number (see "Surveys" section below) (meta.id)
R1f405   Field number in survey (obs.field)
R1s/g 8   Star-galaxy separation (Note 6)   (src.class.starGalaxy)
R1xi -0.11 arcsec Residual in X direction (Note 5)   (stat.fit.residual;pos.eq.ra;arith.diff)
R1eta 0.01 arcsec Residual in Y direction (Note 5)   (stat.fit.residual;pos.eq.dec;arith.diff)
B2mag19.71 mag (i) Second blue magnitude (phot.mag;em.opt.B)
B2C2   source of photometric calibration (Note 4)   (instr.calib)
B2S2   Survey number (see "Surveys" section below) (meta.id)
B2f539   Field number in survey (obs.field)
B2s/g 2   Star-galaxy separation (Note 6)   (src.class.starGalaxy)
B2xi 0.04 arcsec Residual in X direction (Note 5)   (stat.fit.residual;pos.eq.ra;arith.diff)
B2eta 0.02 arcsec Residual in Y direction (Note 5)   (stat.fit.residual;pos.eq.dec;arith.diff)
R2mag17.23 mag (i) Second red magnitude (phot.mag;em.opt.R)
R2C2   source of photometric calibration (Note 4)   (instr.calib)
R2S3   Survey number (see "Surveys" section below) (meta.id)
R2f539   Field number in survey (obs.field)
R2s/g 3   Star-galaxy separation (Note 6)   (src.class.starGalaxy)
R2xi -0.09 arcsec Residual in X direction (Note 5)   (stat.fit.residual;pos.eq.ra;arith.diff)
R2eta -0.03 arcsec Residual in Y direction (Note 5)   (stat.fit.residual;pos.eq.dec;arith.diff)
Imag16.04 mag (i) Infrared (N) magnitude (phot.mag;em.opt.I)
IC2   source of photometric calibration (Note 4)   (instr.calib)
IS7   Survey number (see "Surveys" section below) (meta.id)
If539   Field number in survey (obs.field)
Is/g    Star-galaxy separation (Note 6)   (src.class.starGalaxy)
Ixi 0.03 arcsec Residual in X direction (Note 5)   (stat.fit.residual;pos.eq.ra;arith.diff)
Ieta 0.00 arcsec Residual in Y direction (Note 5)   (stat.fit.residual;pos.eq.dec;arith.diff)
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I/305/out The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)
The Full GSC2.3.2 Catalogue (945592683 objects) (945592683 rows)
  -c=004.834553 +19.776049
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Note: This version of the GSC-II has no proper motions, but the limits on brightness which existed on GSC2.2 (F<18.5, Bj<19.5) were removed.

ColumnValue  Explain   (UCD)
_r0.188 arcsec Distance from center (004.834553+19.776049)[FK5/J2000], at Epoch of catalog (Epoch) (pos.angDistance)
_RAJ200000 19 20.30520 "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)
_DEJ2000+19 46 33.7116 "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)
_RAB195000 16 44.66063 "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)
_DEB1950+19 29 54.8654 "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)
_Glon112.67539862 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)
_Glat-42.45555084 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)

GSC2.3NBPJ006433  (i) [NS0-9A-Z] Identification of the object (Note 1)   (meta.id;meta.main)
GSC1   Identification in GSC Version 1 (Cat. I/254) (meta.note)
HTM6N3231013   [NS0-3] HTM-6 designation as in GSC2.2 (Note 1)   (obs.field)
RAJ2000004.834605 deg (i) Right Ascension (J2000), at "Epoch" (pos.eq.ra;meta.main)
DEJ2000+19.776031 deg (i) Declination in (J2000), at "Epoch" (pos.eq.dec;meta.main)
e_RAJ2000 0.43 arcsec Mean error on RAdeg (Note 2)   (stat.error;pos.eq.ra)
e_DEJ2000 0.51 arcsec Mean error on DEdeg (Note 2)   (stat.error;pos.eq.dec)
Epoch1990.634 yr Epoch of the position (time.epoch)
Fmag17.13 mag (i) Magnitude in F photographic band (red) (phot.mag;em.opt.R)
e_Fmag 0.41 mag Mean error on Fmag (stat.error;phot.mag)
n_Fmag35   Coded emulsion / bandpass / filter (Note 2)   (meta.note)
jmag19.42 mag (i) Magnitude in Bj photographic band (blue) (phot.mag;em.opt.B)
e_jmag 0.41 mag Mean error on jmag (stat.error;phot.mag)
n_jmag18   Coded emulsion / bandpass / filter (Note 2)   (meta.note)
Vmag17.68 mag (i) Magnitude in V photographic band (green) (phot.mag;em.opt.V)
e_Vmag 0.38 mag Mean error on Vmag (stat.error;phot.mag;em.opt.V)
n_Vmag 1   Coded emulsion / bandpass / filter (Note 2)   (meta.note)
Nmag16.39 mag (i) Magnitude in N photographic band (0.8µm) (phot.mag;em.IR.8-15um)
e_Nmag 0.44 mag Mean error on Nmag (stat.error;phot.mag;em.IR.8-15um)
n_Nmag37   Coded emulsion / bandpass / filter (Note 2)   (meta.note)
Umag  mag Magnitude in U band (Johnson) (phot.mag;em.opt.U)
e_Umag  mag Mean error on Umag (stat.error;phot.mag;em.opt.U)
n_Umag    Coded emulsion / bandpass / filter (Note 2)   (meta.note)
Bmag19.41 mag Magnitude in B band (Johnson blue) (phot.mag;em.opt.B)
e_Bmag 0.42 mag Mean error on Bmag (stat.error;phot.mag;em.opt.B)
n_Bmag 7   Coded emulsion / bandpass / filter (Note 2)   (meta.note)
Class0   [0,5] Object class (Note 3)   (meta.code.class)
Status1000111209  Source status flag (Note 4)   (meta.code.error)
M    [M] 'M' for multiple object (Note 5)   (phot.mag;em.IR.4-8um)
a 2.72 pix Semi-major axis of fitting ellipse (phys.angSize;src)
e 0.06   Eccentricity of fitting ellipse (src.orbital.eccentricity)
aPA177.4 deg Position angle (N->E) of fitting ellipse (pos.posAng)
  
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