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=195.9874049 -11.4967594, eq=J2000, rs=2
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Note: UCAC5 document

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (195.9874049-11.4967594)[FK5/J2000], at Epoch of catalog (EPucac) (pos.angDistance)
_RAJ200013 03 56.977216 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-11 29 48.33637 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195013 01 19.610138 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-11 13 44.39705 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon307.833116444 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+51.255883261 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)

ira195.9874049 deg (i) UCAC right ascension (J2000) at epoch "EPucac" on Gaia reference frame (ira) (pos.eq.ra;meta.main)
idc-11.4967594 deg (i) UCAC declination (J2000) at epoch "EPucac" on Gaia reference frame (idc) (pos.eq.dec;meta.main)
srcid3622487464554116096  Gaia source ID (srcid) (meta.id;meta.main)
rag195.9873822 deg Gaia right ascension (ICRS) at epoch 2015.0 (rag) (Note 1)   (pos.eq.ra)
erg 27.7 mas rms uncertainty on RAgaia (erg) (Note 1)   (stat.error)
dcg-11.4966644 deg Gaia declination (ICRS) at epoch 2015.0 (dcg) (Note 1)   (pos.eq.dec)
edg10.9 mas rms uncertainty on DEgaia (edg) (Note 1)   (stat.error)
flg2   [1/3] TGAS/NOMAD flag (flg) (Note 2)   (meta.code)
nu 2  Number of images used for mean position (nu) (meta.number)
epu2000.110 yr UCAC epoch (epu) (time.epoch)
pmur -5.4 mas/yr UCAC/Gaia proper motion in RA*cosDE (pmur) (pos.pm;pos.eq.ra)
pmer 3.1 mas/yr rms uncertainty on pmRA (pmer) (stat.error;pos.pm;pos.eq.ra)
pmud 23.0 mas/yr UCAC/Gaia proper motion in DE (pmud) (pos.pm;pos.eq.dec)
pmed 2.6 mas/yr rms uncertainty on pmDE (pmed) (stat.error;pos.pm;pos.eq.dec)
gmag16.559 mag Gaia G magnitude (gmag) (phot.mag;em.opt.R)
umag14.371 mag Means UCAC model magnitude (umag) (phot.mag;em.opt)
rmag 7.280 mag Photographic R magnitude from NOMAD (rmag) (phot.mag;em.opt.R)
jmag12.535 mag 2MASS J magnitude (jmag) (phot.mag;em.IR.J)
hmag11.815 mag 2MASS H magnitude (hmag) (phot.mag;em.IR.H)
kmag11.256 mag 2MASS K magnitude (kmag) (phot.mag;em.IR.K)
  
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