The spectral lines of a star indicate ionized helium is ...

[stephzh]

The spectral lines of a star indicate ionized helium is prominent, yet the star appears orange in color. Explain the problem with this and offer an explanation.
 
  What will be an ideal response?

Question 2

Thanks to the far-flung Voyager and Pioneers, knowledge of our presence has now spread out over 30 light-years.
 
  Indicate whether the statement is true or false

[shaquita]

Answer to Question 1

Ionized helium is found only in O type stars, which should be blue-white in color; if the star appears orange, it must lie behind a thin dust cloud that is absorbing and scattering most of the shorter wave radiation that the star is sending into space; the star would, therefore, appear much blue and brighter if not for the dust cloud.

Answer to Question 2

FALSE

[stephzh]

Excellent

[ricroger]

Thanks for the timely response, appreciate it