public static IFitsHeader create(String key){
  IFitsHeader result=STANDARD_KEYS.get(key);
  if (result == null) {
    result=new FitsHeaderImpl(key,SOURCE.UNKNOWN,HDU.ANY,VALUE.ANY,"");
  }
  return result;
}

public static IFitsHeader create ( String key ) { IFitsHeader result = STANDARD_KEYS . get ( key ) ; if ( result == null ) { result = new FitsHeaderImpl ( key , SOURCE . UNKNOWN , HDU . ANY , VALUE . ANY , "" ) ; } return result ; }
create a fits header key from a free string
