VizieR

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VizieR

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J/A+A/495/691/bzcat4 Multifrequency catalogue of blazars, Roma-BZCAT (Massaro+, 2009)
Multi-frequency catalogue of blazars (Roma-BZCAT) Version 4.1.1 (2012-August) (3149 rows)
  recno=2237
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ColumnValue  Explain   (UCD)
_RAJ200015 34 47.200 "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+37 15 54.70 "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)
_RAB195015 32 54.373 "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+37 25 51.10 "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)
_Glon059.859982 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+54.289011 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)
2237recno 2237  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Seq2237   [1-3419] Sequential number (meta.record)
NameBZBJ1534+3715  Source name (based on J2000 position) (meta.id;meta.main)
RAJ200015 34 47.2 "h:m:s" (i) Right ascension (J2000.0) (pos.eq.ra;meta.main)
DEJ2000+37 15 54.7 "d:m:s" (i) Declination (J2000.0) (pos.eq.dec;meta.main)
z 0.143  Redshift (src.redshift)
u_z    [ >?] Uncertainty flag on Redshift (meta.code.error;src.redshift)
Rmag16.3 mag R-band magnitude (phot.mag;em.opt.R)
ClassBZB  Source classification (Note G1)   (src.class)
F1.4 22.0 mJy Radio flux 1.4GHz (from NVSS or SUMSS) (phot.flux.density;em.radio.750-1500MHz)
F143 0.0 mJy Radio flux 143GHz (phot.flux.density;em.mm.100-200GHz)
FX 0.230 fW/m2 X-ray flux 0.1-2.4keV (in 10–12erg/cm2/s) (phot.flux;em.X-ray)
Fgam 4.2e-10 ph/cm2/s γ-ray flux 1-100GeV (Fermi) (phot.flux.density;em.gamma.hard)

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