VizieR

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VizieR

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I/297/out NOMAD Catalog (Zacharias+ 2005)
The NOMAD-1 Catalog (1117612732 rows)
  NOMAD1===1211-0512116
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Note: The Naval Observatory Merged Astrometric Dataset (NOMAD) contains astrometric and photometric data for over 1 billion stars derived from the Hipparcos (I/239), Tycho-2 (I/259), UCAC2 (I/289), and USNO-B1.0 (I/284) catalogs for astrometry and optical photometry, supplemented by 2MASS (II/246) near-infrared photometry.
An efficient remote query program findnomad1 is available in the cdsclient package, for Unix/Linux platforms

ColumnValue  Explain   (UCD)
_RAJ200020 37 57.094608 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+31 07 14.20284 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195020 35 54.452942 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+30 56 40.60981 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon072.614014108 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat-06.074129924 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)

NOMAD11211-0512116  (i) NOMAD-identifier (Note 1)   (meta.id;meta.main)
USNO-B11211-0487845  Identifier in USNO-B1 (Cat. I/284) (Note 1)   (meta.id)
UCAC242831693   Number in UCAC2 (Cat. I/289) (meta.id)
Tycho-22686-01345-   Identification in Tycho-2 or Hipparcos (Note 2)   (meta.id)
f_Tycho-2    [*] when distance NOMAD1/Tycho-2 > 1arcsec (meta.code)
YMYM   [YM.] Existence in YB6 or 2MASS (Cat. II/246) (meta.note)
RAJ2000309.4878942 deg (i) Right ascension in ICRS, Ep=J2000 (pos.eq.ra;meta.main)
DEJ2000+31.1206119 deg (i) Declination in ICRS, Ep=J2000 (pos.eq.dec;meta.main)
rC   [BCMYTH] Source of position (Note 3)   (meta.ref;pos.frame)
e_RAJ2000 14 mas Mean error on RAdeg (at epRA) (stat.error;pos.eq.ra)
e_DEJ2000 15 mas Mean error on DEdeg (at epDE) (stat.error;pos.eq.dec)
pmRA -0.8 mas/yr Proper motion in RA (*cos(Dec)) (pos.pm;pos.eq.ra)
e_pmRA 0.7 mas/yr Mean error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -4.9 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.7 mas/yr Mean error on pmDE (stat.error;pos.pm;pos.eq.dec)
Bmag12.708 mag Blue magnitude (phot.mag;em.opt.B)
r_BmagT   [BCMYTHo] Origin of Bmag (Note 3)   (meta.ref;pos.frame)
Vmag12.172 mag Visual magnitude (phot.mag;em.opt.V)
r_VmagT   [BCMYTH] Origin of Vmag (Note 3)   (meta.ref;pos.frame)
Rmag11.800 mag Red magnitude (phot.mag;em.opt.R)
r_RmagB   [BCMYTHe] Origin of Rmag (Note 3)   (meta.ref;pos.frame)
Jmag11.596 mag Infrared J magnitude (from 2MASS) (phot.mag;em.IR.J)
Hmag11.444 mag Infrared H magnitude (from 2MASS) (phot.mag;em.IR.H)
Kmag11.395 mag Infrared K magnitude (from 2MASS) (phot.mag;em.IR.K)
Xflags00001   [0-9a-f] Hexadecimal flags (Note 4)   (meta.code)
R    [R*] Recommended (R) or Problematic (*) (Note 4)   (meta.note)
  
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