VizieR

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VizieR

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J/ApJS/207/16/table4 BL Lac candidates for TeV observations (Massaro+, 2013)
*TBCs all-sky selected from the ROSAT-WISE all-sky surveys (54 rows)
  recno=45
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ColumnValue  Explain   (UCD)
_RAJ200018 41 21.7300 "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+29 09 40.900 "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)
_RAB195018 39 24.5984 "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+29 06 45.209 "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)
_Glon058.4344970 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+14.8532687 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)
45recno 45  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1RXSJ184121.8+290932  ROSAT name (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
WISEJ184121.73+290940.9  WISE name (JHHMMSS.ss+DDMMSS.s) (meta.id.cross)
ONameNVSS J184121+290945  Other name from literature and NED (NVSS, 6dF or SUMSS) (meta.id)
[3.4/4.6] 0.61 mag [0.31,0.86] WISE [3.4]-[4.6] color index (phot.color;em.IR;em.IR)
e_[3.4/4.6] 0.04 mag [0.03,0.08] [3.4/4.6] uncertainty (stat.error)
[4.6/12] 2.09 mag [1.61,2.32] WISE [4.6]-[12] color index (phot.color;em.IR;em.IR)
e_[4.6/12] 0.06 mag [0.02,0.08] [4.6/12] uncertainty (stat.error)
l_[12/22]   Limit flag on [12/22] (meta.code.error)
[12/22] 1.92 mag [0.77,2.65] WISE [12]-[22] color index (phot.color;em.IR;em.IR)
e_[12/22] 0.26 mag [0.02,0.51] [12/22] uncertainty (stat.error)
Rmag16.66 mag [0,17.55] USNO-B (Cat. I/284) R-band magnitude (within 3.3") (phot.mag;em.opt.R)
NotesN,M  Existence of counterparts and notes (Note 1)   (meta.note)
z    [0.0656,0.12] Redshift (src.redshift)
u_z?   [?] Uncertainty flag on z or unknown z (meta.code.error;src.redshift)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref)
_RA280.34054 deg (i) Positions from WISE names (right ascension part) (pos.eq.ra;meta.main)
_DE+29.16136 deg (i) Positions from WISE names (declination part) (pos.eq.dec;meta.main)
  
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