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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=321
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ColumnValue  Explain   (UCD)
_RAJ200000 54 17.592 "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)
_DEJ2000-08 44 25.80 "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)
_RAB195000 51 46.218 "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)
_DEB1950-09 00 41.21 "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)
_Glon125.167580 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-71.599853 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)
321recno 321  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

StarHD 5268  Star Name or Number (default = HD or DM)
Nobs 3  Number of Observations of S
Smin 0.1015  Minimum S value
Smax 0.1063  Maximum S value
Smean 0.1032  Mean S value (Note 1)   
e_Smean 0.0027  Standard deviation on Smean
sdS 2.61 % Standard deviation as a percentage
Wmin 623.5  Minimum weight (Note 2)   
Wmean 646.6  Mean weight (Note 2)   
Date11982-07-18 "Y:M:D" First Date the star was observed
Date21982-07-18 "Y:M:D" Last Date the star was observed

SNameHD 5268  Name recognized by Simbad
RAJ2000013.5733 deg Right Ascension (J2000)
DEJ2000-08.7405 deg Declination (J2000)
rPosA   [AUM] Origin of position: A=ASCC-2.5 (I/280) U=UCAC2 (I/289), M=2MASS (II/246)
Bmag 7.076 mag B mag in Johnson system (from ASCC-2.5)
Vmag 6.153 mag V mag in Johnson system (from ASCC-2.5)
ASCC1265697   [1,2603318] ASCC-2.5 number (Cat. I/280)
HIP 4257   Hipparcos number (Cat. I/239)
  
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