VizieR

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VizieR

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J/AN/340/437/table8 Optical variability of blazars (Abrahamyan+, 2019)
Variable blazars (2121 rows)
  recno=1984
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ColumnValue  Explain   (UCD)
_RAJ200022 39 06.0312 "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 59.412 "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 57.9360 "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 37.528 "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)
_Glon333.8993513 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-52.9935753 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)
1984recno 1984  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Name5BZQJ2239-5525  Source name (5BZQ, 5BZB, 5BZG or 5BZU JHHMM+DDMM) (meta.id;meta.main)
RAJ2000339.77513 deg (i) BZCAT v5 right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000-55.43317 deg (i) BZCAT v5 declination (J2000) (pos.eq.dec;meta.main)
z 1.975   [0.006/6.9] Redshift from BZCAT v.5 (src.redshift)
Rmag19.7 mag [0/24.4] R-band magnitude from BZCAT v.5 (phot.mag;em.opt.R)
RMag-22.47 mag [-28.3/-16] R-band absolute magnitude (phot.mag;em.opt.R)
Lum 0.31753217 10+38W [0.0008/66.3] Luminosity in 1045erg/s (phys.luminosity)
B1best18.60 mag [8.5/22.4] B1 Best magnitude (POSS1) (phot.mag;em.opt.B)
e_B1best 0.00 mag [0/1.3] B1 Best magnitude error (stat.error)
R1best18.65 mag [7.4/20.9] R1 Best magnitude (POSS1) (phot.mag;em.opt.R)
e_R1best 0.61 mag [0/1.1] R1 Best magnitude error (stat.error)
B2best19.37 mag [8.7/22.2] B2 Best magnitude (POSS2) (phot.mag;em.opt.B)
e_B2best 0.15 mag [0/1.5] B2 Best magnitude error (stat.error)
R2best19.45 mag [7.6/23.7] R2 Best magnitude (POSS2) (phot.mag;em.opt.R)
e_R2best 0.25 mag [0/1.3] R2 Best magnitude error (stat.error)
delB 0.32 mag [-6.1/5.6] ΔB value (=|BPOSS2-BPOSS1|-3σB) (phot.mag;arith.diff)
delR-1.79 mag [-6.3/7] ΔR value (=|RPOSS2-RPOSS1|-3σR) (phot.mag;arith.diff)
Br 2.99   [0/357] Br=|BPOSS2-BPOSS1|/σB (src.var.amplitude)
Rr 0.92   [0/563] Rr=|RPOSS2-RPOSS1|/σR (src.var.amplitude)
VardB1   [0/3] Variability category based on ΔB (Note 1)   (meta.code;src.var)
VardR0   [0/3] Variability category based on ΔR (Note 1)   (meta.code;src.var)
VarBr2   [0/3] Variability category based on Br (Note 1)   (meta.code;src.var)
VarRr0   [0/3] Variability category based on Rr (Note 1)   (meta.code;src.var)

USNOB1USNOB1  Display the USNO-B1.0 data (I/284) within 1" (meta.ref.url)
SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
  
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