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=6123254
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ColumnValue  Explain   (UCD)
_RAJ200023 07 28.8576 "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+21 08 02.904 "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)
_RAB195023 05 01.0389 "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+20 51 48.385 "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)
_Glon092.7647457 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-35.5754754 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 6123254  (i) Index in Mark IV engineering database (meta.id;meta.main)
o_TASS4 8  Number of good (V,I) measurement pairs (meta.number)
RAJ2000346.87024 deg (i) Mean Right Ascension (J2000.0) (pos.eq.ra;meta.main)
e_RAJ2000 0.00084 deg Standard deviation from mean RA position (stat.error;pos.eq.ra)
DEJ2000+21.13414 deg (i) Mean Declination (J2000.0) (pos.eq.dec;meta.main)
e_DEJ2000 0.00013 deg Standard deviation from mean Dec position (stat.error;pos.eq.dec)
Vmag 6.127 mag Interquartile mean of all V-band measurements (Note 5)   (phot.mag;em.opt.V)
e_Vmag 0.114 mag Standard deviation from interquartile mean V (stat.error;phot.mag;em.opt.V)
eVmag 0.105 mag Standard deviation from mean V value in ensemble analysis of local patch (Note 1)   (stat.stdev;phot.mag;em.opt.V)
Imag 5.745 mag Interquartile mean of all I-band measurements (Note 5)   (phot.mag;em.opt.I;stat.mean)
e_Imag 0.110 mag Standard deviation from interquartile mean I (stat.error;phot.mag;em.opt.I)
eImag 0.107 mag Standard deviation from mean I value in ensemble analysis of local patch (Note 1)   (stat.stdev;phot.mag;em.opt.I)
dVmag 1.27  Normalized measure of deviation from mean V magnitude in ensemble analysis (Note 2)   (stat.variance)
dImag 3.52  Normalized measure of deviation from mean I magnitude in ensemble analysis (Note 2)   (stat.variance)
WS 9.19  (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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