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VizieR

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J/ApJS/143/1/table4 FIRST-APM Source Catalog (McMahon+, 2002)
FIRST-APM Source Catalog (496791 rows)
  recno=404554
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ColumnValue  Explain   (UCD)
_RAJ200010 12 17.66000 "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+27 51 43.9600 "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)
_RAB195010 09 27.63821 "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+28 06 34.3890 "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)
_Glon202.30435939 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+54.85758361 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)
404554recno 404554  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

RAJ200010 12 17.660 "h:m:s" (i) Radio hour of Right Ascension (J2000) (Note 1)   (pos.eq.ra;meta.main)
DEJ2000+27 51 43.96 "d:m:s" (i) Radio degree of Declination (J2000) (Note 1)   (pos.eq.dec;meta.main)
oRA-11.29 arcsec Right Ascension offset to the optical object (pos.eq.ra;arith.diff)
oDE 15.52 arcsec Declination offset to the optical object (pos.eq.dec;arith.diff)
Sep19.19 arcsec Radius to the optical object (pos.angDistance)
Eclass 0  APM classification on E (red) plate (Note 2)   (meta.code.class)
Epsf 0.00  APM psf parameter on E (red) plate (Note 3)   (src.class.starGalaxy)
Emag-19.94 mag E (red) plate magnitude (1) (Note 4)   (phot.mag;em.opt.R)
Oclass 1  APM classification on O (blue) plate (Note 2)   (meta.code.class)
Opsf 2.45  APM psf parameter on O (blue) plate (Note 3)   (src.class.starGalaxy)
Omag 21.33 mag O (blue) plate magnitude (1) (Note 4)   (phot.mag;em.opt.B)
O-E -9.99 mag The (O-E) plate color (Note 5)   (phot.color;em.opt.B;em.opt.R)
Plate 1396   Number of POSS-I plate (meta.number)
Fpeak 1.38 mJy FIRST peak radio flux density at 1.4GHz (Note 6)   (phot.flux.density;em.radio.750-1500MHz)
Fint 1.81 mJy FIRST integrated radio flux density (Note 6)   (phot.flux.density;em.radio.750-1500MHz)
Fmaj 3.1 arcsec FIRST source deconvolved major axis (6) (Note 7)   (phys.angSize)
Fmin 2.8 arcsec FIRST source deconvolved minor axis (6) (Note 7)   (phys.angSize)
FPA 89.3 deg FIRST position angle (Note 6)   (pos.posAng)

APMAPM  Link to APM (North) data (meta.ref)
FIRSTFIRST  Link to FIRST data (meta.ref)
  
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