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The Sun

Discussion in 'Physical & Life Sciences' started by April_Rose, Sep 27, 2020.

  1. AV1611VET

    AV1611VET SCIENCE CAN TAKE A HIKE Supporter

    +41,043
    United States
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    Sorry. :(
     
  2. Brightmoon

    Brightmoon Apes and humans are all in family Hominidae.

    +5,050
    United States
    Episcopalian
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    give it a few more months and it will be directly overhead underneath Orion. Face south !

    here’s what you’ll see around the beginning of January . The second picture is more realistic see if you can figure out what that other bright star is 122873EA-3A45-47A4-BC60-031962E3C11D.jpeg C6178FBF-C278-49D8-ADD2-C9B2CD38AF84.jpeg

    on a really clear night you can see Orion’s sword which contains the nebula, his head which is a single star, and his bow which is on the right side
     
    Last edited: Sep 28, 2020
  3. Ophiolite

    Ophiolite Recalcitrant Procrastinating Ape

    +6,727
    United Kingdom
    Agnostic
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    This reminded me of the story of the gentleman walking through a park one evening when he encountered a couple arguing. One of them called him over:
    "Say fellow. Help us out here. That bright thing up there, I say it's the moon, but my wife insists it's the sun."
    "Sorry, I can't help. I'm not from around here."
     
  4. Kylie

    Kylie Defeater of Illogic

    +3,915
    Australia
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    It depends how you measure brightness. If you take "brightest" as meaning"The total amount of light we get from it," then yes, the sun is far brighter than all the other stars, but that's simply because it is closest to us. The moon is the second brightest object in the sky, again due simply to the fact that it is very close to us, so we get a lot of the light reflected off it.

    Very often, however, we don't count the sun and moon and just consider stars outside our solar system. In that case, it is Sirius that is the brightest. This is called "apparent magnitude," or how bright the star appears to us.

    But we can also measure brightness by considering the total amount of light put out by a star. This is called "absolute magnitude" and there are many stars that when measured this way far outshine the sun and Sirius. What is absolute magnitude?
     
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