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J/ApJS/80/531/gxfluxes An X-ray catalog and atlas of galaxies. (Fabbiano+, 1992)
Flux Density Info for the EINSTEIN Galaxy Catalog (448 rows)
  recno=25
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ColumnValue  Explain   (UCD)
_RAJ200000 42 43.08 "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+40 51 55.8 "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)
_RAB195000 39 59.00 "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+40 35 30.0 "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)
_Glon121.15430 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-21.97615 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)
25recno 25  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NameN0221  (i) Name of the object (NGC, IC, UGC number) (meta.id;meta.main)
note c   [ a-e] Flag indicating ending note (Note 1)   (meta.note)
RAB195000 39 59 "h:m:s" (i) Right Ascension (B1950) (hour) (pos.eq.ra;meta.main)
DEB1950+40 35 30 "d:m:s" (i) Declination (B1950) (deg) (pos.eq.dec;meta.main)
instr    [IH] Instrument used (Note 2)   (meta.id;instr)
seqno 0  Observation sequence number (Note 3)   (meta.id)
Bmag 8.79 mag Apparent B magnitude (Note 4)   (phot.mag;em.opt.B)
type-6  T-type following RC2 (Note 5)   (src.morph.type)
RA_X  "h:m:s" (i) Right Ascension (B1950) (hour) (Note 6)   (pos.eq.ra;meta.main)
DE_X  "d:m:s" (i) Declination (B1950) (deg) (Note)   (pos.eq.dec;meta.main)
radius  arcsec Size of aperture for flux extraction (phys.angSize;src)
l_counts   Flagged '<' if counts is an upper limit (Note 7)   (meta.code.error)
counts  ct Total counts from EINSTEIN observation (Note 7)   (phot.count;em.X-ray)
e_counts  ct Error on count total (Note 7)   (stat.error)
l_crate    [ <] '<' if count rate is upper limit (Note 8)   (meta.code.error)
crate  ct/ks Count-rate from EINSTEIN observation (Note 8)   (phot.count;em.X-ray)
l_FluxX    [ <] '<' if flux is an upper limit (Note 9)   (meta.code.error)
FluxX  10-16W/m2 X-ray flux (Note 9)   (phot.flux;em.X-ray)
dist 0.700 Mpc Assumed distance in Megaparsecs (Note 10)   (pos.distance)
l_logLx    [ <] '<' if luminosity is upper limit (Note 11)   (meta.code.error)
logLx37.73 [10-7W] Log of the X-ray luminosity (Note 11)   (phys.luminosity;em.X-ray)
  
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