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NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  HST photometry of 74 galactic globular clusters (Piotto+, 2002)
Post annotation
1.J/A+A/391/945/table2Main parameters of the observed clusters (74 rows)

Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  NGC/IC (char) Cluster NGC or IC name (;meta.main)
  Name (char) Other cluster name (
  GLON deg Galactic longitude (pos.galactic.lon)
  GLAT deg Galactic latitude (
  RGC kpc Distance from the Galactic center, assuming R0=8.0kpc (pos.distance)
  E(B-V) mag Foreground reddening (phot.color.excess)
  (m-M)V mag Apparent visual distance modulus (phot.mag.distMod)
  VMAG mag Absolute visual magnitude (phys.magAbs;em.opt.V)
  [Fe/H] [Sun] Metallicity (phys.abund.Z)
  c  (n) Central concentration (c=log(rt/rc)) (em.wl.central)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
  n_c (char) [c] c: core-collapsed cluster (meta.note)
  u_c (char) Uncertainty flag on c (meta.code.error)
  logrt [yr] (n) logarithm of relaxation time (time.relax)
  logtc [yr] (n) logarithm of core relaxation time (time.relax)
  logth [yr] (n) logarithm of relaxation time at the half-mass radius (time.relax)
  log{rho}0 [solLum/pc3](n) logarithm of central luminosity density (phys.luminosity)
  CMD (char) Link to color-magnitude diagram, at the Padova Globular Cluster Group Web (meta.ref.url)
  Np  (n)Number of points in the cluster (number of valid records in the corresponding file of "db" subdirectory) (meta.number)
  db  Display the photometry data for this cluster (meta.ref.url)
  _RA deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  _DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)
  Simbad  ask the Simbad data-base about this object

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
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