Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Ultraviolet Image

  1. Feb 25, 2008 #1
    Hi... Apologies if this is in the wrong section but it is kind of homework related.

    I'm looking at an ultraviolet image of the sun.... Would I be right in saying that brighter areas represent higher temperatures and darker regions represent lower teperatures?
     
  2. jcsd
  3. Feb 25, 2008 #2

    Astronuc

    User Avatar
    Staff Emeritus
    Science Advisor

    Brighter simply means more photons per unit area (intensity), i.e. more recombination reactions, so that doesn't necessarily imply higher temperature, but it could. The reaction rate is related to temperature as well as particle density.

    Darker usually implies cooler.
     
  4. Jun 3, 2009 #3
    Is it possible to view things in the UV with goggles or scopes?
     
  5. Jun 3, 2009 #4

    LowlyPion

    User Avatar
    Homework Helper

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook