VizieR

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VizieR

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J/ApJ/461/127/twosigma The Einstein Two-Sigma Catalog (Moran+ 1996)
The 2-sigma catalog (46186 rows)
  recno=21074
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ColumnValue  Explain   (UCD)
_RAJ200011 43 38.5860 "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+71 41 19.075 "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)
_RAB195011 40 49.0807 "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+71 57 57.996 "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)
_Glon130.3041074 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+44.4564194 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)
21074recno 21074  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

RA195011 40 49.08 "h:m:s" (i) RA (1950) of the source (pos.eq.ra;meta.main)
DE1950+71 57 58.00 "d:m:s" (i) Dec (1950) of the source (pos.eq.dec;meta.main)
S/N 14.17  Signal-to-noise ratio of the source (Note)   (stat.snr)
IPCSEQ 6244  IPC Sequence number containing the source (meta.id;meta.main)
cnts125 207.3 arcmin-2 Number of background-subtracted counts collected within a 1.25 arcmin radius circular aperture (Note)   (instr.background)
cnts20 243.9 arcmin-2 Number of background-subtracted counts collected within a 2.0 arcmin radius circular aperture (Note)   (instr.background)
exp125 884.0 s flatfield-weighted exposure time for the source in the 1.25 arcmin radius aperture (Note)   (time.duration;obs.exposure)
exp20 846.7 s flatfield-weighted exposure time for the source in the 2.0 arcmin radius aperture (Note)   (time.duration;obs.exposure)
N12521  Number of "good" pixels used for count in the 1.25 arcmin radius aperture (Note)   (meta.number)
N2043  Number of "good" pixels used for count in the 2.0 arcmin radius aperture (Note)   (meta.number)
Nbg195  Number of "good" pixels used for the background count in the concentric 3-6 arcmin radius annulus (Note)   (meta.number)
  
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