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=081.2118169 -32.8266822, eq=J2000, rs=2
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Note: UCAC5 document

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (081.2118169-32.8266822)[FK5/J2000], at Epoch of catalog (EPucac) (pos.angDistance)
_RAJ200005 24 50.835285 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-32 49 36.05505 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195005 22 59.748444 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-32 52 13.31215 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon236.524569329 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-31.538825220 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)

ira081.2118169 deg (i) UCAC right ascension (J2000) at epoch "EPucac" on Gaia reference frame (ira) (pos.eq.ra;meta.main)
idc-32.8266822 deg (i) UCAC declination (J2000) at epoch "EPucac" on Gaia reference frame (idc) (pos.eq.dec;meta.main)
srcid4826354531196339712  Gaia source ID (srcid) (meta.id;meta.main)
rag 81.2117644 deg Gaia right ascension (ICRS) at epoch 2015.0 (rag) (Note 1)   (pos.eq.ra)
erg 1.9 mas rms uncertainty on RAgaia (erg) (Note 1)   (stat.error)
dcg-32.8266783 deg Gaia declination (ICRS) at epoch 2015.0 (dcg) (Note 1)   (pos.eq.dec)
edg 2.5 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)
epu1999.028 yr UCAC epoch (epu) (time.epoch)
pmur -10.0 mas/yr UCAC/Gaia proper motion in RA*cosDE (pmur) (pos.pm;pos.eq.ra)
pmer 4.9 mas/yr rms uncertainty on pmRA (pmer) (stat.error;pos.pm;pos.eq.ra)
pmud 0.9 mas/yr UCAC/Gaia proper motion in DE (pmud) (pos.pm;pos.eq.dec)
pmed 5.1 mas/yr rms uncertainty on pmDE (pmed) (stat.error;pos.pm;pos.eq.dec)
gmag15.180 mag Gaia G magnitude (gmag) (phot.mag;em.opt.R)
umag16.406 mag Means UCAC model magnitude (umag) (phot.mag;em.opt)
rmag14.840 mag Photographic R magnitude from NOMAD (rmag) (phot.mag;em.opt.R)
jmag12.630 mag 2MASS J magnitude (jmag) (phot.mag;em.IR.J)
hmag12.030 mag 2MASS H magnitude (hmag) (phot.mag;em.IR.H)
kmag11.795 mag 2MASS K magnitude (kmag) (phot.mag;em.IR.K)
  
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