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=040.4994247 +58.3131225, eq=J2000, rs=2
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Note: UCAC5 document

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (040.4994247+58.3131225)[FK5/J2000], at Epoch of catalog (EPucac) (pos.angDistance)
_RAJ200002 41 59.862159 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+58 18 47.23261 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 38 16.789024 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+58 05 59.97558 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon137.040859642 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-01.497272716 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)

ira040.4994247 deg (i) UCAC right ascension (J2000) at epoch "EPucac" on Gaia reference frame (ira) (pos.eq.ra;meta.main)
idc+58.3131225 deg (i) UCAC declination (J2000) at epoch "EPucac" on Gaia reference frame (idc) (pos.eq.dec;meta.main)
srcid 463958550752747392  Gaia source ID (srcid) (meta.id;meta.main)
rag 40.4994217 deg Gaia right ascension (ICRS) at epoch 2015.0 (rag) (Note 1)   (pos.eq.ra)
erg 0.3 mas rms uncertainty on RAgaia (erg) (Note 1)   (stat.error)
dcg 58.3131300 deg Gaia declination (ICRS) at epoch 2015.0 (dcg) (Note 1)   (pos.eq.dec)
edg 0.2 mas rms uncertainty on DEgaia (edg) (Note 1)   (stat.error)
flg1   [1/3] TGAS/NOMAD flag (flg) (Note 2)   (meta.code)
nu 5  Number of images used for mean position (nu) (meta.number)
epu2003.648 yr UCAC epoch (epu) (time.epoch)
pmur -0.5 mas/yr UCAC/Gaia proper motion in RA*cosDE (pmur) (pos.pm;pos.eq.ra)
pmer 1.3 mas/yr rms uncertainty on pmRA (pmer) (stat.error;pos.pm;pos.eq.ra)
pmud 2.3 mas/yr UCAC/Gaia proper motion in DE (pmud) (pos.pm;pos.eq.dec)
pmed 1.2 mas/yr rms uncertainty on pmDE (pmed) (stat.error;pos.pm;pos.eq.dec)
gmag11.823 mag Gaia G magnitude (gmag) (phot.mag;em.opt.R)
umag11.937 mag Means UCAC model magnitude (umag) (phot.mag;em.opt)
rmag12.180 mag Photographic R magnitude from NOMAD (rmag) (phot.mag;em.opt.R)
jmag11.111 mag 2MASS J magnitude (jmag) (phot.mag;em.IR.J)
hmag11.009 mag 2MASS H magnitude (hmag) (phot.mag;em.IR.H)
kmag10.946 mag 2MASS K magnitude (kmag) (phot.mag;em.IR.K)
  
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