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VizieR

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III/159A/catalog Ca II H and K Measurements Made at MWO (Duncan+ 1991)
Observational Data (3111 rows)
  recno=1986
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ColumnValue  Explain   (UCD)
_RAJ200017 56 36.384 "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+51 29 20.40 "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)
_RAB195017 55 26.525 "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+51 29 37.71 "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)
_Glon079.055081 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+29.217315 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)
1986recno 1986  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

StarHD 164058  Star Name or Number (default = HD or DM)
Nobs 3  Number of Observations of S
Smin 0.2270  Minimum S value
Smax 0.2309  Maximum S value
Smean 0.2294  Mean S value (Note 1)   
e_Smean 0.0021  Standard deviation on Smean
sdS 0.92 % Standard deviation as a percentage
Wmin 7901.5  Minimum weight (Note 2)   
Wmean 7944.7  Mean weight (Note 2)   
Date11982-07-23 "Y:M:D" First Date the star was observed
Date21982-07-23 "Y:M:D" Last Date the star was observed

SNameHD 164058  Name recognized by Simbad
RAJ2000269.1516 deg Right Ascension (J2000)
DEJ2000+51.4890 deg Declination (J2000)
rPosA   [AUM] Origin of position: A=ASCC-2.5 (I/280) U=UCAC2 (I/289), M=2MASS (II/246)
Bmag 3.805 mag B mag in Johnson system (from ASCC-2.5)
Vmag 2.231 mag V mag in Johnson system (from ASCC-2.5)
ASCC 265281   [1,2603318] ASCC-2.5 number (Cat. I/280)
HIP 87833   Hipparcos number (Cat. I/239)
  
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