| I/340/ucac5 | UCAC5 Catalogue (Zacharias+ 2017) Fifth U.S. Naval Observatory CCD Astrograph Catalog (original column names in green) (107758513 rows) | -c=001.2158628 +34.1062597, eq=J2000, rs=2 |
Note: 
UCAC5 document
| Column | Value | Explain (UCD) | |
| _r | 0.000 | arcsec | Distance from center (001.2158628+34.1062597)[FK5/J2000], at Epoch of catalog (EPucac) (pos.angDistance) |
| _RAJ2000 | 00 04 51.811478 | "h:m:s" | Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) |
| _DEJ2000 | +34 06 22.53417 | "d:m:s" | Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) |
| _RAB1950 | 00 02 17.461899 | "h:m:s" | Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) |
| _DEB1950 | +33 49 40.54695 | "d:m:s" | Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) |
| _Glon | 112.044654644 | 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 | -27.778949304 | 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) |
| ira | 001.2158628 | deg | (i) UCAC right ascension (J2000) at epoch "EPucac" on Gaia reference frame (ira) (pos.eq.ra;meta.main) |
| idc | +34.1062597 | deg | (i) UCAC declination (J2000) at epoch "EPucac" on Gaia reference frame (idc) (pos.eq.dec;meta.main) |
| srcid | 2875170508033526912 | Gaia source ID (srcid) (meta.id;meta.main) | |
| rag | 1.2157342 | deg | Gaia right ascension (ICRS) at epoch 2015.0 (rag) (Note 1) (pos.eq.ra) |
| erg | 0.1 | mas | rms uncertainty on RAgaia (erg) (Note 1) (stat.error) |
| dcg | 34.1062611 | deg | Gaia declination (ICRS) at epoch 2015.0 (dcg) (Note 1) (pos.eq.dec) |
| edg | 0.1 | mas | rms uncertainty on DEgaia (edg) (Note 1) (stat.error) |
| flg | 2 | [1/3] TGAS/NOMAD flag (flg) (Note 2) (meta.code) | |
| nu | 1 | Number of images used for mean position (nu) (meta.number) | |
| epu | 2001.874 | yr | UCAC epoch (epu) (time.epoch) |
| pmur | -29.2 | mas/yr | UCAC/Gaia proper motion in RA*cosDE (pmur) (pos.pm;pos.eq.ra) |
| pmer | 16.5 | mas/yr | rms uncertainty on pmRA (pmer) (stat.error;pos.pm;pos.eq.ra) |
| pmud | 0.4 | mas/yr | UCAC/Gaia proper motion in DE (pmud) (pos.pm;pos.eq.dec) |
| pmed | 16.9 | mas/yr | rms uncertainty on pmDE (pmed) (stat.error;pos.pm;pos.eq.dec) |
| gmag | 16.367 | mag | Gaia G magnitude (gmag) (phot.mag;em.opt.R) |
| umag | 16.941 | mag | Means UCAC model magnitude (umag) (phot.mag;em.opt) |
| rmag | 16.120 | mag | Photographic R magnitude from NOMAD (rmag) (phot.mag;em.opt.R) |
| jmag | 15.289 | mag | 2MASS J magnitude (jmag) (phot.mag;em.IR.J) |
| hmag | 14.826 | mag | 2MASS H magnitude (hmag) (phot.mag;em.IR.H) |
| kmag | 14.752 | mag | 2MASS K magnitude (kmag) (phot.mag;em.IR.K) |
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