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=216.3245275 +86.0097247, eq=J2000, rs=2
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Note: UCAC5 document

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (216.3245275+86.0097247)[FK5/J2000], at Epoch of catalog (EPucac) (pos.angDistance)
_RAJ200014 25 17.820061 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+86 00 34.98633 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195014 32 39.455498 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+86 13 52.46694 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon121.083785233 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+30.776386889 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)

ira216.3245275 deg (i) UCAC right ascension (J2000) at epoch "EPucac" on Gaia reference frame (ira) (pos.eq.ra;meta.main)
idc+86.0097247 deg (i) UCAC declination (J2000) at epoch "EPucac" on Gaia reference frame (idc) (pos.eq.dec;meta.main)
srcid1727538341550755328  Gaia source ID (srcid) (meta.id;meta.main)
rag216.3252433 deg Gaia right ascension (ICRS) at epoch 2015.0 (rag) (Note 1)   (pos.eq.ra)
erg 0.6 mas rms uncertainty on RAgaia (erg) (Note 1)   (stat.error)
dcg 86.0097411 deg Gaia declination (ICRS) at epoch 2015.0 (dcg) (Note 1)   (pos.eq.dec)
edg 0.4 mas rms uncertainty on DEgaia (edg) (Note 1)   (stat.error)
flg2   [1/3] TGAS/NOMAD flag (flg) (Note 2)   (meta.code)
nu 9  Number of images used for mean position (nu) (meta.number)
epu2004.184 yr UCAC epoch (epu) (time.epoch)
pmur 16.6 mas/yr UCAC/Gaia proper motion in RA*cosDE (pmur) (pos.pm;pos.eq.ra)
pmer 1.4 mas/yr rms uncertainty on pmRA (pmer) (stat.error;pos.pm;pos.eq.ra)
pmud 5.4 mas/yr UCAC/Gaia proper motion in DE (pmud) (pos.pm;pos.eq.dec)
pmed 1.4 mas/yr rms uncertainty on pmDE (pmed) (stat.error;pos.pm;pos.eq.dec)
gmag13.403 mag Gaia G magnitude (gmag) (phot.mag;em.opt.R)
umag14.110 mag Means UCAC model magnitude (umag) (phot.mag;em.opt)
rmag12.990 mag Photographic R magnitude from NOMAD (rmag) (phot.mag;em.opt.R)
jmag11.208 mag 2MASS J magnitude (jmag) (phot.mag;em.IR.J)
hmag10.586 mag 2MASS H magnitude (hmag) (phot.mag;em.IR.H)
kmag10.384 mag 2MASS K magnitude (kmag) (phot.mag;em.IR.K)
  
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