VizieR

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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=18263
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ColumnValue  Explain   (UCD)
_RAJ200022 31 41.280 "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)
_DEJ2000-10 54 19.80 "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)
_RAB195022 29 02.535 "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)
_DEB1950-11 09 46.29 "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)
_Glon052.390525 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-53.387131 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)
18263recno 18263  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP111200  Hipparcos (Cat. I/311) identifier (meta.id)
RA_ICRS337.9220 deg (i) Approximate right ascension (ICRS) at epoch 1991.25 (Note G6)   (pos.eq.ra;meta.main)
DE_ICRS-10.9055 deg (i) Approximate declination (ICRS) at epoch 1991.25 (Note G6)   (pos.eq.dec;meta.main)
GLON 52.3906 deg Approximate Galactic longitude at epoch 1991.25 (Note G6)   (pos.galactic.lon)
GLAT-53.3871 deg Approximate Galactic latitude at epoch 1991.25 (Note G6)   (pos.galactic.lat)
E(J-Ks) 0.03 mag [0.00,0.24] E(J-Ks) reddening (Note G7)   (phot.color.excess)
E(B-V) 0.05 mag [0.00,0.40] E(B-V) reddening (Note G3)   (phot.color.excess)
Rv 3.21   [2.16,4.07] Rv total-to-selective extinction ratio (Note G4)   (phys.absorption.gal;arith.ratio)
Av 0.14 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.icrs337.9220 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-10.9055 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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