:) planetmap Nation_1 
:) cat planets.* > planets.all
:) dist -f planets.all -low 20 -up 42 -orig N1_1
Loading Planets
Planet of Orgin N1_1  (  11.27   28.98)
Planets in the range [20.000,42.000> from this planet.
Name                                 x       y   distance
  11                               41.13   52.67   38.12
  29                               40.54   51.49   36.92
  33                               43.92   46.99   37.29
  35                               21.06    4.09   26.75
  37                               36.06   40.14   27.19
  45                               39.66   30.77   28.45
  49                               33.37   38.78   24.18
  57                                0.42    3.70   27.51
  60                               11.86    0.75   28.24
  65                               14.06   51.05   22.25
  66                               42.34   51.34   38.28
  68                                2.36   53.97   26.53
  85                               44.56   51.26   40.06
  88                               50.03   17.17   40.52
  97                               39.07   45.99   32.59
  99                               33.15    4.25   33.02
 101                               40.84   42.29   32.43
N2_1                               42.15   45.20   34.88
N2_2                               42.65   46.50   35.94
N2_3                               42.89   44.52   35.23