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VizieR

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II/354/hipext HIP and TGAS stars reddening and extinction (Gontcharov+ 2018)
E(J-Ks), E(B-V), Rv and Av for Hipparcos stars, not in Gaia DR1 TGAS (19259 rows)
  recno=12543
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ColumnValue  Explain   (UCD)
_RAJ200015 40 28.464 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J1991.25 (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+18 40 17.04 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J1991.25 (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)
_RAB195015 38 13.222 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1991.25 (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+18 49 54.04 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1991.25 (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)
_Glon029.805675 deg Galactic longitude at Epoch=J1991.25 (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+50.354073 deg Galactic latitude at Epoch=J1991.25 (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)
12543recno 12543  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 76769  Hipparcos (Cat. I/311) identifier (meta.id)
RA_ICRS235.1186 deg (i) Approximate right ascension (ICRS) at epoch 1991.25 (Note G6)   (pos.eq.ra;meta.main)
DE_ICRS+18.6714 deg (i) Approximate declination (ICRS) at epoch 1991.25 (Note G6)   (pos.eq.dec;meta.main)
GLON 29.8057 deg Approximate Galactic longitude at epoch 1991.25 (Note G6)   (pos.galactic.lon)
GLAT 50.3541 deg Approximate Galactic latitude at epoch 1991.25 (Note G6)   (pos.galactic.lat)
E(J-Ks) 0.05 mag [0.00,0.24] E(J-Ks) reddening (Note G7)   (phot.color.excess)
E(B-V) 0.09 mag [0.00,0.40] E(B-V) reddening (Note G3)   (phot.color.excess)
Rv 3.17   [2.16,4.07] Rv total-to-selective extinction ratio (Note G4)   (phys.absorption.gal;arith.ratio)
Av 0.28 mag [0.00,1.15] Av interstellar extinction (Note G5)   (phys.absorption)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
_RA.icrs235.1186 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+18.6714 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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