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  HII region catalogue of M100 (Knapen, 1998)
Post annotation
1.J/MNRAS/297/255/catalogThe catalogue of HII regions in M100 (1948 rows)

Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  ID  (i) [1,1948] identification number (;meta.main)
  Xpos arcsec X position (toward East) from centre (Note 1)   (pos.cartesian.x;instr.det)
  Ypos arcsec Y position (toward North) from centre (Note 1)   (pos.cartesian.y;instr.det)
  Dist arcsec Deprojected distance from centre (Note 1)   (pos.angDistance)
  PA deg Position angle wrt centre, N over E (pos.posAng)
  Radius arcsec Radius of HII region, in arcsec (phys.angSize;obs.field)
  Flux 10+29W Calibrated Flux in units of 10**36 erg/s (phot.flux;em.line.Halpha)
  Location   [0,2] 0=interarm; 1=arm; 2=centre (meta.code)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)
  _RABcomp deg (i) Position from offsets (right ascension part) (pos.eq.ra;meta.main)
  _DEBcomp deg (i) Position from offsets (declination part) (pos.eq.dec;meta.main)
  _RA.icrs deg (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
  _DE.icrs deg (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)

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