VizieR

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VizieR

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II/271A/patch2 TASS Mark IV patches photometric catalog, version 2 (Droege+, 2007)
*Properties of objects detected repeatedly during the Mark IV survey of northern sky (V.2) (4353670 rows)
  TASS4=711557
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ColumnValue  Explain   (UCD)
_RAJ200006 43 08.7792 "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+01 17 23.928 "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)
_RAB195006 40 33.5265 "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+01 20 25.868 "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)
_Glon210.8382159 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-01.2559276 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)

TASS4 711557  (i) Index in Mark IV engineering database (meta.id;meta.main)
o_TASS4 6  Number of good (V,I) measurement pairs (meta.number)
RAJ2000100.78658 deg (i) Mean Right Ascension (J2000.0) (pos.eq.ra;meta.main)
e_RAJ2000 0.00106 deg Standard deviation from mean RA position (stat.error;pos.eq.ra)
DEJ2000+01.28998 deg (i) Mean Declination (J2000.0) (pos.eq.dec;meta.main)
e_DEJ2000 0.00053 deg Standard deviation from mean Dec position (stat.error;pos.eq.dec)
Vmag13.853 mag Interquartile mean of all V-band measurements (Note 5)   (phot.mag;em.opt.V)
e_Vmag 0.204 mag Standard deviation from interquartile mean V (stat.error;phot.mag;em.opt.V)
eVmag 0.122 mag Standard deviation from mean V value in ensemble analysis of local patch (Note 1)   (stat.stdev;phot.mag;em.opt.V)
Imag11.957 mag Interquartile mean of all I-band measurements (Note 5)   (phot.mag;em.opt.I;stat.mean)
e_Imag 0.058 mag Standard deviation from interquartile mean I (stat.error;phot.mag;em.opt.I)
eImag 0.059 mag Standard deviation from mean I value in ensemble analysis of local patch (Note 1)   (stat.stdev;phot.mag;em.opt.I)
dVmag -1.61  Normalized measure of deviation from mean V magnitude in ensemble analysis (Note 2)   (stat.variance)
dImag -1.83  Normalized measure of deviation from mean I magnitude in ensemble analysis (Note 2)   (stat.variance)
WS 0.46  (i) Welch-Stetson variability index (Note 3)   (meta.code;src.var.index)
Proxy 0  Proximity code (Note 4)   (meta.code)

Env    Environment when nearby star(s) exist within 1arcmin (meta.ref.url)
  
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