VizieR

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VizieR

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I/340/ucac5 UCAC5 Catalogue (Zacharias+ 2017)
Fifth U.S. Naval Observatory CCD Astrograph Catalog (original column names in green) (107758513 rows)
  -c=159.0333292 -58.2092231, eq=J2000, rs=2
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Note: UCAC5 document

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (159.0333292-58.2092231)[FK5/J2000], at Epoch of catalog (EPucac) (pos.angDistance)
_RAJ200010 36 07.997258 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-58 12 33.20005 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195010 34 13.109891 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-57 56 58.67284 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon285.878241244 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+00.110149248 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)

ira159.0333292 deg (i) UCAC right ascension (J2000) at epoch "EPucac" on Gaia reference frame (ira) (pos.eq.ra;meta.main)
idc-58.2092231 deg (i) UCAC declination (J2000) at epoch "EPucac" on Gaia reference frame (idc) (pos.eq.dec;meta.main)
srcid5351448608510099328  Gaia source ID (srcid) (meta.id;meta.main)
rag159.0332586 deg Gaia right ascension (ICRS) at epoch 2015.0 (rag) (Note 1)   (pos.eq.ra)
erg 0.2 mas rms uncertainty on RAgaia (erg) (Note 1)   (stat.error)
dcg-58.2092150 deg Gaia declination (ICRS) at epoch 2015.0 (dcg) (Note 1)   (pos.eq.dec)
edg 0.1 mas rms uncertainty on DEgaia (edg) (Note 1)   (stat.error)
flg2   [1/3] TGAS/NOMAD flag (flg) (Note 2)   (meta.code)
nu 4  Number of images used for mean position (nu) (meta.number)
epu1998.271 yr UCAC epoch (epu) (time.epoch)
pmur -8.0 mas/yr UCAC/Gaia proper motion in RA*cosDE (pmur) (pos.pm;pos.eq.ra)
pmer 1.1 mas/yr rms uncertainty on pmRA (pmer) (stat.error;pos.pm;pos.eq.ra)
pmud 1.8 mas/yr UCAC/Gaia proper motion in DE (pmud) (pos.pm;pos.eq.dec)
pmed 1.0 mas/yr rms uncertainty on pmDE (pmed) (stat.error;pos.pm;pos.eq.dec)
gmag12.701 mag Gaia G magnitude (gmag) (phot.mag;em.opt.R)
umag12.937 mag Means UCAC model magnitude (umag) (phot.mag;em.opt)
rmag12.300 mag Photographic R magnitude from NOMAD (rmag) (phot.mag;em.opt.R)
jmag12.398 mag 2MASS J magnitude (jmag) (phot.mag;em.IR.J)
hmag12.422 mag 2MASS H magnitude (hmag) (phot.mag;em.IR.H)
kmag12.329 mag 2MASS K magnitude (kmag) (phot.mag;em.IR.K)
  
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