﻿COUNTING 
  THE 
  STARS 
  SEAEES 
  

  

  197 
  

  

  pressed 
  as 
  a 
  ratio 
  of 
  the 
  numbers 
  on 
  the 
  north 
  side 
  to 
  the 
  numbers 
  on 
  

   the 
  south, 
  the 
  results 
  run 
  as 
  follows: 
  

  

  Limiting 
  magnitude 
  

  

  Ratio, 
  north 
  to 
  south 
  

  

  Here 
  again 
  is 
  a 
  change 
  with 
  limiting 
  brightness. 
  Counting 
  only 
  

   to 
  the 
  ninth 
  magnitude, 
  we 
  find 
  50 
  per 
  cent 
  more 
  stars 
  in 
  the 
  southern 
  

   half 
  of 
  the 
  sky 
  than 
  in 
  the 
  northern. 
  As 
  fainter 
  stars 
  are 
  added, 
  the 
  

   excess 
  decreases 
  and 
  disappears 
  near 
  the 
  sixteenth 
  magnitude. 
  

   From 
  there 
  on 
  the 
  numbers 
  in 
  the 
  two 
  halves 
  of 
  the 
  sky 
  are 
  sensibly 
  

   equal. 
  Moreover, 
  the 
  ratios 
  for 
  individual 
  zones 
  in 
  equal 
  latitudes, 
  

  

  4- 
  Mag 
  fe 
  

  

  150 
  

  

  Figure 
  2.— 
  L 
  is 
  the 
  longitude 
  of 
  the 
  center 
  of 
  the 
  stellar 
  system 
  as 
  derived 
  from 
  stars 
  brighter 
  than 
  

   various 
  limits 
  of 
  magnitude; 
  p 
  and 
  Lo 
  are 
  the 
  tilt 
  with 
  respect 
  to 
  the 
  Milky 
  Way, 
  and 
  the 
  direction 
  

   of 
  the 
  tilt 
  of 
  the 
  circles 
  (secondary 
  galaxy) 
  about 
  which 
  the 
  stars 
  are 
  symmetrically 
  situated 
  and 
  

   toward 
  which 
  they 
  tend 
  to 
  crowd 
  

  

  north 
  and 
  south, 
  show 
  a 
  similar 
  sequence 
  of 
  values; 
  hence, 
  although 
  

   the 
  distribution 
  of 
  bright 
  stars 
  in 
  latitude 
  is 
  notably 
  asymmetrical, 
  

   that 
  of 
  faint 
  stars 
  is 
  very 
  symmetrical. 
  

  

  THE 
  LOCAL 
  SYSTEM 
  

  

  The 
  probable 
  explanation 
  of 
  these 
  changes 
  with 
  magnitude 
  is 
  

   suggested 
  by 
  following 
  the 
  curves 
  of 
  Figure 
  2 
  back 
  to 
  about 
  the 
  sixth 
  

   magnitude, 
  for 
  there 
  we 
  come 
  to 
  figures 
  with 
  which 
  we 
  are 
  familiar 
  in 
  

   another 
  connection. 
  Immediately 
  surrounding 
  us 
  in 
  space 
  is 
  a 
  large 
  

  

  