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VizieR

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J/A+A/417/651/table1 NEXXUS ROSAT survey of coronal X-ray (Schmitt+, 2004)
Optical and X-ray properties of F/G-type stars (332 rows)
  recno=298
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ColumnValue  Explain   (UCD)
_RAJ200019 16 55.2566 "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+05 10 08.042 "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)
_RAB195019 14 27.1330 "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+05 04 43.084 "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)
_Glon040.4469595 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-03.2832679 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)
298recno 298  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NameGl 752A  Designation (mainly Gliese catalog) (meta.id;phys.atmol.configuration)
VMAG10.28 mag Absolute magnitude in V band (phys.magAbs;em.opt.V)
SpTypeM3 V  MK Spectral type (src.spType)
Dist 5.87 pc Heliocentric distance (pos.distance)
ModeP   [SPFH] ROSAT Observation mode (Note 1)   (meta.id;instr)
l_CRate   Limit flag on CRate (meta.code.error)
CRate 0.035360 ct/s ROSAT count rate (phot.count;em.X-ray)
e_CRate  ct/s Count rate error (stat.error)
like/SN 139.0   (?=9999.0) Likelihood (Mode SPF) or Signal-to-Noise-Ratio (Mode H) (Note 2)   (stat.snr)
ExpTime 10492 s Exposure time (time.duration;obs.exposure)
logLX26.94 [10-7W] X-ray luminosity (in cgs-units) (phys.luminosity;em.X-ray)

SimbadNameGl 752A  Designation understandable by the Simbad data-base (meta.id)
_RA289.23024 deg (i) Explain (right ascension part) (pos.eq.ra;meta.main)
_DE+05.16890 deg (i) Explain (declination part) (pos.eq.dec;meta.main)
  
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