VizieR

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VizieR

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II/354/tgasext HIP and TGAS stars reddening and extinction (Gontcharov+ 2018)
E(J-Ks), E(B-V), Rv and Av for Gaia DR1 TGAS stars (711237 rows)
  recno=71777
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ColumnValue  Explain   (UCD)
_RAJ200002 46 43.200 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2015. (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)
_DEJ2000-23 05 09.60 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2015. (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)
_RAB195002 44 28.367 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J2015. (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)
_DEB1950-23 17 41.35 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J2015. (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)
_Glon210.538651 deg Galactic longitude at Epoch=J2015. (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-63.650255 deg Galactic latitude at Epoch=J2015. (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)
71777recno 71777  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Source5077642278726840832  Source ID (Cat. I/337) (meta.id;meta.main)
HIP 12961   Hipparcos (Cat. I/311) identifier (meta.id)
RA_ICRS041.6800 deg (i) Approximate right ascension (ICRS) at epoch 2015.0 (Note G1)   (pos.eq.ra;meta.main)
DE_ICRS-23.0860 deg (i) Approximate declination (ICRS) at epoch 2015.0 (Note G1)   (pos.eq.dec;meta.main)
GLON210.5387 deg Approximate Galactic longitude at epoch 2015.0 (Note G1)   (pos.galactic.lon)
GLAT-63.6502 deg Approximate Galactic latitude at epoch 2015.0 (Note G1)   (pos.galactic.lat)
E(J-Ks) 0.01 mag [0.00,0.26] E(J-Ks) reddening (Note G2)   (phot.color.excess)
E(B-V) 0.02 mag [0.00,0.43] E(B-V) reddening (Note G3)   (phot.color.excess)
Rv 3.21   [2.01,4.12] Rv total-to-selective extinction ratio (Note G4)   (phys.absorption.gal;arith.ratio)
Av 0.07 mag [0.00,1.24] Av interstellar extinction (Note G5)   (phys.absorption)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
_RA.icrs041.6800 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-23.0860 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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