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=187.1804138 +11.7550106, eq=J2000, rs=2
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Note: UCAC5 document

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (187.1804138+11.7550106)[FK5/J2000], at Epoch of catalog (EPucac) (pos.angDistance)
_RAJ200012 28 43.299290 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+11 45 18.02628 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195012 26 11.222599 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+12 01 52.43719 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon282.703694231 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+73.728068568 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)

ira187.1804138 deg (i) UCAC right ascension (J2000) at epoch "EPucac" on Gaia reference frame (ira) (pos.eq.ra;meta.main)
idc+11.7550106 deg (i) UCAC declination (J2000) at epoch "EPucac" on Gaia reference frame (idc) (pos.eq.dec;meta.main)
srcid3907556916575721984  Gaia source ID (srcid) (meta.id;meta.main)
rag187.1804153 deg Gaia right ascension (ICRS) at epoch 2015.0 (rag) (Note 1)   (pos.eq.ra)
erg 31.3 mas rms uncertainty on RAgaia (erg) (Note 1)   (stat.error)
dcg 11.7550542 deg Gaia declination (ICRS) at epoch 2015.0 (dcg) (Note 1)   (pos.eq.dec)
edg12.2 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)
epu2001.061 yr UCAC epoch (epu) (time.epoch)
pmur 0.3 mas/yr UCAC/Gaia proper motion in RA*cosDE (pmur) (pos.pm;pos.eq.ra)
pmer 5.3 mas/yr rms uncertainty on pmRA (pmer) (stat.error;pos.pm;pos.eq.ra)
pmud 11.2 mas/yr UCAC/Gaia proper motion in DE (pmud) (pos.pm;pos.eq.dec)
pmed 4.9 mas/yr rms uncertainty on pmDE (pmed) (stat.error;pos.pm;pos.eq.dec)
gmag17.506 mag Gaia G magnitude (gmag) (phot.mag;em.opt.R)
umag15.108 mag Means UCAC model magnitude (umag) (phot.mag;em.opt)
rmag 8.000 mag Photographic R magnitude from NOMAD (rmag) (phot.mag;em.opt.R)
jmag13.269 mag 2MASS J magnitude (jmag) (phot.mag;em.IR.J)
hmag12.566 mag 2MASS H magnitude (hmag) (phot.mag;em.IR.H)
kmag12.275 mag 2MASS K magnitude (kmag) (phot.mag;em.IR.K)
  
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