Binary and Multiple Stars: Crash Course Astronomy #34
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Double stars are stars that appear to be near each other in the sky, but if they’re gravitationally bound together we call them binary stars. Many stars are actually part of binary or multiple systems. If they are close enough together they can actually touch other, merging into one peanut-shaped star. In some close binaries matter can flow from one star to the other, changing the way it ages. If one star is a white dwarf, this can cause periodic explosions, and possibly even lead to blowing up the entire star. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents What are binary stars? 0:51 Merging peanut-shaped stars 6:52 Close binaries begin to flow into one another, sometimes blowing up the star 8:29 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Big Dipper http://www.deepskycolors.com/archive/2011/05/14/The-Big-Dipper.html [credit: Rogelio Bernal Andreo] Sirius https://www.spacetelescope.org/images/heic0516a/ [credit: NASA, ESA, H. Bond (STScI), and M. Barstow (University of Leicester)] Sirius A and B http://chandra.harvard.edu/photo/2000/0065/index.html [credit: NASA/SAO/CXC] Clashing Winds (video) http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11680 [credit: NASA's Goddard Space Flight Center] The Radial Velocity Method (artist’s impression) http://www.eso.org/public/images/eso0722e/ [credit: ESO] Mizar+Alcor https://commons.wikimedia.org/wiki/File:Thomas_Bresson_-_Mizar%2Balcor_(by).jpg [credit: Wikimedia Commons, Thomas Bresson] Polaris http://imgsrc.hubblesite.org/hu/db/images/hs-2006-02-e-print.jpg [credit: NASA, ESA, and G. Bacon] Does the Sun Have Long Lost Siblings? https://www.youtube.com/watch?v=IaWg2ACMspk [credit: SciShow Space] Clashing Winds (image) http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11680 [credit: NASA/C. Reed X-ray images courtesy of NASA/GSFC/S. Immler] Artist’s impression of the pulsar PSR J0348+0432 and its white dwarf companion http://www.eso.org/public/images/eso1319c/ [credit: ESO/L. Calçada] Artist’s impression of eclipsing binary http://www.eso.org/public/videos/eso1311b/ [credit: ESO/L. Calçada] Artist’s impression of the yellow hypergiant star HR 5171 http://www.eso.org/public/images/eso1409b/ [credit: ESO] Nova http://www.nasa.gov/centers/goddard/news/topstory/2008/keck_ophiuchi_prt.htm [credit: NASA, Casey Reed] Artist's impression of RS Ophiuchi http://www.jodrellbank.manchester.ac.uk/news/2006/rsoph-radio/ [credit: David A. Hardy/http://www.astroart.org & PPARC] An artist's impression of Sirius A and B http://www.spacetelescope.org/images/heic0516b/ [credit: NASA, ESA and G. Bacon (STScI)] Artist's impression of vampire star http://www.spacetelescope.org/videos/astro_bn/ [credit: ESO/M. Kornmesser] Type Ia supernova http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10532 [credit: Walt Feimer, NASA/Goddard Space Flight Center]
Comments
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and if the white dwarf undergoes a supernova then what are we left with?
is it a pulsar from white dwarf or what?
i am confused!!!!!! -
But our star companion nemisis is so far away from the sun
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Do you know that our sun is a two star binary system
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The sun is a binary because there is a red dwarf orbiting the sun called nemisis
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Phill i am a fan of nasa and yesterday i saw my first binary system and it was the sirius one because it was in the north and i saw the small star moving from one side to the other side of the big star From agata's son Jakub
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somehow you hear more and more german words in english videos, or is that just my perception?
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How romantic.
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So, once a star that couldn't explode into a supernova, could, if it absorbed a stream from a generous companion? Am I wrong?
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The sun might not be alone nemesis is a somewhat thing in some people
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QUESTION! How is it that stars produce white light but can be seen as red yellow orange and blue
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Look, i Challenge you, anyone, to watch ERic Dubay and/or Jeranism,
then., come back to me and just ask. I simply use Eric Dubay and
Jeranism as a 'template', on which the still sleeping , may and should
understand the Big Deception of the powers that be. you know. -
3:15
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Would the white dwarf supernova annihilate the companion star?
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Thank you really much for making this episode, Phil Plait, Aranda, Sweeny, Thaller and all the others at Crash Course Astronomy! Yes, indeed, binary stars are important are really interesting...fascinating! I was actually quite surprised to learn that a such large portion of the stars in the Universe form a multiple-star system: one third! Cool.
So, if matter is transported from one star to the other slow enough, theoretically, the stars in a recurrent binary system could live forever? Nice! Eternal life due to the strange properties of the Universe. -
Spectroscopy!
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4:44 How do we have so much oxygen in the Sun? That's a jump in the periodic table right? Leftovers from old stars?
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Sexy
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#The Anonymous Sexual Redditor +Haise Leonhardt Agreed. @Militant Pacifist
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Crash course astronomy is my favorite! You rock Phil!
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this video is so illuminati of you
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