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VizieR

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J/A+A/449/425/table1 Optical identification of ROSAT-FSC sources (Mickaelian+, 2006)
A catalog of Hamburg/ROSAT-FSC identifications for δ>0, |b|>30 and X-ray counts>0.04ct/s: 3202 objects for 2696 ROSAT sources. (3202 rows)
  recno=460
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ColumnValue  Explain   (UCD)
_RAJ200003 48 16.1200 "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+11 08 33.700 "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)
_RAB195003 45 31.4461 "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+10 59 23.926 "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)
_Glon177.1711913 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-32.5348269 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)
460recno 460  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1RXSJ034816.2+110849  ROSAT name (Cat. IX/29) (meta.id;meta.main)
m_1RXS    [a-e] Optical counterpart component (meta.code.multip)
ePos 11 arcsec ROSAT positional error (stat.error)
CR 0.0478 ct/s ROSAT count rate (phot.count;em.X-ray)
e_CR 0.0129 ct/s ROSAT count rate error (stat.error)
HR1 0.42   ROSAT hardness ratio 1 (0.1-0.4,0.5/2.0keV) (phot.flux;arith.ratio)
e_HR1 0.27   ROSAT hardness ratio 1 error (stat.error)
HR2-0.17   ROSAT hardness ratio 2 (0.5-0.9,0.9-2.0 keV) (phot.flux;arith.ratio)
e_HR2 0.29   ROSAT hardness ratio 2 error (stat.error)
RAJ200003 48 16.12 "h:m:s" (i) DSS2 right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+11 08 33.7 "d:m:s" (i) DSS2 declination (J2000) (pos.eq.dec;meta.main)
Opt-X 15.3 arcsec Distance between optical and X-ray positions (pos.angDistance)
O-Xr 1.4  Relative distance optical/X-ray (Opt-X/ePos) (pos.angDistance;arith.ratio)
OmagM  mag MAPS O magnitude (phot.mag;em.opt.B)
(O-E)M  mag MAPS O-E colour index (phot.color;em.opt.B;em.opt.R)
pm  mas/yr USNO-B1.0 total proper motion (pos.pm)
Omag  mag USNO-B1.0 O magnitude (mean of DSS1 blue and DSS2 blue) (phot.mag;em.opt.B)
Emag  mag USNO-B1.0 E magnitude (mean of DSS1 red and DSS2 red) (phot.mag;em.opt.R)
O-E  mag USNO-B1.0 O-E colour (mean of DSS1 O-E and DSS2 O-E) (phot.color;em.opt.B;em.opt.R)
Imag  mag USNO-B1.0 I magnitude (DSS2 IR) (phot.mag;em.opt.I)
Dmag  mag USNO-B1.0 magnitude difference between DSS2 and DSS1 (mean of blue and red) (phot.mag;arith.diff)
ClassStar B  Classification of the objects (Note 1)   (src.class)
Com   Comments on the objects (Note 2)   (meta.note)
OptTypeStar bright  Associations with known optical objects: types (Note 3)   (src.class)
ONamesSV ZI 232  Optical associations: names of the objects (meta.id.cross)
OdistO 3.1 arcsec Optical associations: distance between the catalog and DSS2 red (our) positions (pos.angDistance)
OdistX 13.1 arcsec Optical associations: distance between the catalog and ROSAT positions (pos.angDistance)
TypeB3V  Optical associations: classification (src.class)
mag 4.92 mag Optical associations: catalog magnitudes (typically B magnitude) (phot.mag;em.opt)
n_mag    [gR] Band in not B magnitude (meta.note)
z    Optical associations: redshift (src.redshift)
Aband   Non-optical associations: wavelength domain (radio, IR, X-ray) (instr.bandpass)
ANames   Non-optical associations: names of sources (meta.id.cross)
AdistO  arcsec Non-optical associations: distance between the source and DSS2 red (our) positions (pos.angDistance)
AdistX  arcsec Non-optical associations: distance between the source and ROSAT positions (pos.angDistance)

USNO-BUSNO-B  Display the details from the USNO-B1.0 catalog (I/284) (meta.ref.url)
  
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