VizieR

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J/A+A/422/511
  Oxygen abundance in M101 HII regions (Cedres+, 2004)
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1.J/A+A/422/511/table3Region number and derived oxygen abundance for M101 (NGC 5457) (221 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)
  Region  Region identification number (Note 1)   (obs.field)
  12+log(O/H)  Oxygen abundance (H=12) (phys.abund)
  e_12+log(O/H)  Error in the oxygen abundance (stat.error)

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