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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  Hα fluxes of Galactic planetary nebulae (Frew+, 2013)
Post annotation
1.J/MNRAS/431/2/fluxesHα fluxes measured from SHASSA (Southern Hα Sky Survey Atlas, table1) and VTTS (Virginia Tech Spectral-line Survey, table 4) (1296 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)
  S (char) Survey: SHASSA (Southern Hα Sky Survey Atlas), or VTTS (Virginia Tech Spectral-line Survey) (
  M  (n)2 if the PN in both surveys (meta.ref.url)
  PNG (char) PNG designation (LLL.l+BB.bA) (
  Name (char) Planetary nebulae name (;meta.main)
  RAJ2000 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  R[NII]  (n) Observed nebular λλ6548,6584/Hα ratio (phot.flux;arith.ratio)
  u_R[NII] (char) Uncertainty flag on R[NII] (meta.code.error)
  l_logFred (char) Limit flag on logFred (meta.code.error)
  logFred [mW/m2] (n)Average red (Hα+[NII]) flux (phot.flux)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
  l_logF(Ha) (char) Limit flag on logF(Ha) (meta.code.error)
  logF(Ha) [mW/m2] (n) Corrected Hα flux (phot.flux;em.line.Halpha)
  e_logF(Ha) [mW/m2] (n) rms uncertainty on logF(Ha) (stat.error)
  rap arcmin (n) Adopted aperture radius ("—" for tba, unexplained) (phys.angSize;src)
  Nf  (n) Number of independent fields from which a measurement is obtained (;obs.field)
  cbeta [-] (n) Derived logarithmic extinction (Note G2)   (phys.absorption)
  u_cbeta (char) [:] Uncertainty flag on cbeta (meta.code.error)
  Notes (char) Note(s) (Note G1)   (meta.note)
  SimbadName (char) Designation understandable by the Simbad data-base (

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