-- 154 -


  10I2

          Pressure,     1000
          atFo sp ere s



  10 1






  10o


U


H
H
U
p 10
0





  1002







  10-  _   _   _/i


  10-.4




     5     10    20      50     100   200

                Temperature, 1000'R


Figure 18. Rosseland opacity of hydrogen.