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=5525
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ColumnValue  Explain   (UCD)
_RAJ200022 39 06.0000 "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)
_DEJ2000-55 25 59.200 "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)
_RAB195022 35 57.9047 "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)
_DEB1950-55 41 37.315 "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)
_Glon333.8995026 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-52.9935505 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)
5525recno 5525  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

AT20GJ223906-552559  AT20G name (JHHMMSS+DDMMSS) (meta.id;meta.main)
n_AT20G    [ebdhlmp] AT20G flags (Note 1)   (meta.note)
RAJ200022 39 06.00 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000-55 25 59.2 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
S20 152 mJy Flux density at 20GHz (phot.flux.density;em.radio.12-30GHz)
S8.4 207 mJy Flux density at 8.4GHz (phot.flux.density;em.radio.6-12GHz)
S4.8 226 mJy Flux density at 4.8GHz (phot.flux.density;em.radio.3-6GHz)
Qg   [pg] Quality flag. g: good, p:poor (meta.code.qual)
S1.4  GHz NVSS 1.4GHz flux density (phot.flux.density;em.radio.750-1500MHz)
S0.8 295.8 GHz SUMSS 0.8GHz flux density (phot.flux.density;em.radio.750-1500MHz)
RAO22 39 06.02 "h:m:s" Optical right ascension (J2000) (pos.eq.ra)
DEO-55 25 59.4 "d:m:s" Optical declination (J2000) (pos.eq.dec)
off 0.3 arcsec Offset from ATG20G source (pos;arith.diff)
Bmag19.54 mag SuperCOSMOS bJ magnitude (phot.mag;em.opt.B)
Rmag19.32 mag SuperCOSMOS rF magnitude (phot.mag;em.opt.R)
SC2   [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    Redshift (src.redshift)
q_z    [12346N] Redshift measurement quality, values ≥4 are reliable (Note 4)   (meta.code.qual;src.redshift)
Type   Spectral classification (Note 5)   (src.class)
RMAG  mag Absolute R magnitude (phys.magAbs;em.opt.R)
logP20  [W/Hz] Logarithm of the K-corrected 20GHz radio luminosity (phys.luminosity;em.radio.12-30GHz)
BibCode   Reference (Note 6)   (meta.ref;pos.frame)

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