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Are hotter stars always brighter?

  1. Jan 30, 2007 #1
    I posted it under celestia development forums but I wonder if, per chance, it is my misconception, so I ask it here.

    Is that true that absolute magnitude should be proportional to star temperature; that is, are hotter stars always brighter?

    edit: okay, I looked things up, changed my plot a bit, so now it looks more like right.

    http://img167.imageshack.us/img167/565/aaaaawm9.jpg

    but. this means stars that are not in "main sequence" cannot be modelled by black bodies. what are their spectrum models?
     
    Last edited: Jan 30, 2007
  2. jcsd
  3. Jan 30, 2007 #2

    Astronuc

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    Staff: Mentor

  4. Jan 30, 2007 #3
    yep I haven't thought of multiplying by star surface. that was it, thank you.
     
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