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Take a stroll on a brown dwarf

  1. Aug 25, 2011 #1
  2. jcsd
  3. Aug 25, 2011 #2

    phinds

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    from the article:

    Now I don't know about you, but to me "an order of magnitude" is at least roughly a factor of 10. That makes two of the statements in the above paragraph serious contradict each other.
     
  4. Aug 25, 2011 #3
    Well the article cites an estimated surface temperature of 80 F, and an order of magnitude above that is 800 F which is if not instant incineration pretty close.

    But in C that's only 23, which is much a smaller number so therefore an order of magnitude would be nigh-fatal but certainly not incineration. So maybe that is what the writer was thinking.

    By no means should you ever land on a brown dwarf using kelvins, however.

    ;)
     
  5. Aug 25, 2011 #4

    phinds

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    nonsense. The only possible way in which it makes any sense to "multiply" temperatures is to use absolute. Try the math on THAT for size.
     
  6. Aug 25, 2011 #5
    Oh but that doesn't sound like any fun at all.

    I like the 23 -> 230 explanation much better. And I seriously bet you that's what the article author was doing.
     
  7. Aug 26, 2011 #6

    phinds

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    Which was exactly my point. When someone is that ignorant of the fundamentals, why would I trust him to report on ANYTHING scientific?
     
  8. Aug 26, 2011 #7
    Instant summer and winter lol
     
  9. Aug 26, 2011 #8
    Eh, as long as you ignore the details which might be wrong, you can still get the message. Star is cool enough to be on.


    And the gravity would certainly be a problem, I vaguely remember reading it would be about one order of magnitude less than the sun, but don't quote me on that.
     
  10. Aug 27, 2011 #9
    Why arguing over the news? Go directly to NASA source:

    http://www.jpl.nasa.gov/news/news.cfm?release=2011-263"

     
    Last edited by a moderator: Apr 26, 2017
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