Anonymous
Anonymous asked in Science & MathematicsAstronomy & Space · 9 years ago

The _____ of a star is primarily determined by its surface temperature.?

A.composition

B.size

C.apparent brightness

D.age

E.color

10 Answers

Relevance
  • Tom S
    Lv 7
    9 years ago
    Best Answer

    E. Color (spectral class, too)

  • Anonymous
    9 years ago

    C.apparent brightness AND E. color

    Which is determined by the star's mass

    You JUST joined Yahoo Answers. Every question you ask costs you four or five points.

    Most of the regulars on Astronomy & Space have stopped doing homework problems. You will learn AND remember more if you do YOUR OWN research first, rather than being lazy and refusing to use your brain so that you cheat on your homework instead.

    If these are not homework questing, then you are a troll testing the intelligence levels of people on YA. You are going to be disappointed/ Astronomy & Space has some very intelligent regular people who hang out in A & S, but the numbers of people who think they understand what they are talking about who use YA to show off how smart they are usually do NOT understand what they are talking about.

  • 9 years ago

    I would guess C

    Temperature ( which would be linked to energy output) would be linked to Brightness

    Size Age and Colour are linked to each other, but temperature could differ

    Older stars can be Red Giants and Brown Dwarfs

    The Composition of a Star will effect most things

    But C - the brightness , I am sure is the answer

  • Anonymous
    9 years ago

    Colour... ^^

    The colour of a star is related to its temperature because a star with a relatively cool temperature glows red and a star with a very high Temperature glows bluish-white or even blue.

    The closer to the blue end it is, the hotter it is. Closer to red and the cooler it is.

    Type in "HR Diagram" in your search engine.

    Hope this helps :)

    Source(s): <3 (avid watcher of Wonder's of the Universe with Brian Cox)
  • How do you think about the answers? You can sign in to vote the answer.
  • peter
    Lv 6
    9 years ago

    C is of cource wrong because of..... distance.

    Leaves E as the only plausible alternative....

    I know there is a relation between the color of a star and it's temperature but i didn't know there was a direct relation, but there is:

    http://docs.kde.org/development/en/kdeedu/kstars/a...

    http://docs.kde.org/development/en/kdeedu/kstars/a...

  • 9 years ago

    E is correct. The temperature determines the blackbody frequency distribution, which manifests to us as color.

  • Anonymous
    9 years ago

    It's E.Color

  • 4 years ago

    Color is correct

  • 9 years ago

    E

  • 9 years ago

    Color.

Still have questions? Get your answers by asking now.