VizieR

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VizieR

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J/MNRAS/417/2651/catalog AT20G-optical catalogue (Mahony+, 2011)
AT20G-optical catalogue (5890 rows)
  recno=3834
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ColumnValue  Explain   (UCD)
_RAJ200014 55 01.3400 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (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.eq.ra)
_DEJ2000-04 20 18.200 "d:m:s" Declination (FK5, Equinox=J2000.0) (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.eq.dec)
_RAB195014 52 24.1583 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (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.eq.ra)
_DEB1950-04 08 10.490 "d:m:s" Declination (FK4, Equinox=B1950.0) (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.eq.dec)
_Glon351.1510736 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+46.6368687 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)
3834recno 3834  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

AT20GJ145501-042018  AT20G name (JHHMMSS+DDMMSS) (meta.id;meta.main)
n_AT20Ged   [ebdhlmp] AT20G flags (Note 1)   (meta.note)
RAJ200014 55 01.34 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000-04 20 18.2 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
S20 120 mJy Flux density at 20GHz (phot.flux.density;em.radio.12-30GHz)
S8.4  mJy Flux density at 8.4GHz (phot.flux.density;em.radio.6-12GHz)
S4.8  mJy Flux density at 4.8GHz (phot.flux.density;em.radio.3-6GHz)
Qp   [pg] Quality flag. g: good, p:poor (meta.code.qual)
S1.4 1037.3 GHz NVSS 1.4GHz flux density (phot.flux.density;em.radio.750-1500MHz)
S0.8  GHz SUMSS 0.8GHz flux density (phot.flux.density;em.radio.750-1500MHz)
RAO14 55 01.40 "h:m:s" Optical right ascension (J2000) (pos.eq.ra)
DEO-04 21 00.5 "d:m:s" Optical declination (J2000) (pos.eq.dec)
off 42.3 arcsec Offset from ATG20G source (pos;arith.diff)
Bmag20.64 mag SuperCOSMOS bJ magnitude (phot.mag;em.opt.B)
Rmag19.13 mag SuperCOSMOS rF magnitude (phot.mag;em.opt.R)
SC1   [0/4] SuperCOSMOS class based on the morphology of the optical source (1=galaxy, 2=star) (Note 2)   (src.class.starGalaxy)
f_SC    [bouc] Optical flags (Note 3)   (meta.code)
z 0.441   Redshift (src.redshift)
q_zN   [12346N] Redshift measurement quality, values ≥4 are reliable (Note 4)   (meta.code.qual;src.redshift)
TypeG  Spectral classification (Note 5)   (src.class)
RMAG-23.10 mag Absolute R magnitude (phys.magAbs;em.opt.R)
logP2025.77 [W/Hz] Logarithm of the K-corrected 20GHz radio luminosity (phys.luminosity;em.radio.12-30GHz)
BibCode1985PASP...97..932S  Reference (Note 6)   (meta.ref;pos.frame)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
  
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