What is the biggest star in the Universe

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	What is the biggest star in the Universe

wiganfootie

9-1-2009 5:46 AM

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9-2-2009 3:53 PM

Oortcloud

I always love videos like this. So few people even comprehend the large scales our universe exists in.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/e03d7b6b-04d6-4754-8b9b-c334c06b87f3/23829164-005B-4231-95FF-49191070C52C/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/" href="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/" style="font-size: 11px;">www.universetoday.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/"><H2><A title="What is the Biggest Star in the Universe?" href="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/">What is the Biggest Star in the Universe?</A></H2></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/www.universetoday.com/img/680E7C0F-068E-49A4-A9D9-EDAC5CAD9C45" alt="Eta Carinae. Image credit: Hubble" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/"><P>Before we jump straight to the answer, let's take a look at our own <A rel="external" title="" class="alinks_links" href="http://www.universetoday.com/guide-to-space/the-sun/">Sun</A> for a sense of scale. Our familiar star is a mighty 1.4 million km across (870,000 miles). That's such a huge number that it's hard to get a sense of scale. <A rel="external" title="" class="alinks_links" href="http://www.universetoday.com/guide-to-space/the-sun/">The Sun</A> accounts for 99.9% of all the matter in <A rel="external" title="" class="alinks_links" href="http://www.universetoday.com/guide-to-space/the-solar-system/">our Solar System</A>. In fact, you could fit one million <A rel="external" title="" class="alinks_links" href="http://www.universetoday.com/guide-to-space/the-solar-system/planet/">planet</A> Earths inside the Sun.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/"><P>Astronomers use the terms "solar radius" and "solar mass" to compare large and smaller <A rel="external" title="" class="alinks_links" href="http://www.universetoday.com/guide-to-space/stars/">stars</A>, so we'll do the same. A solar radius is 690,000 km (432,000 miles) and a solar mass is 2 x 10<SUP>30</SUP> kilograms (4.3 x 10<SUP>30</SUP> pounds). That's 2,000,000,000,000,000,000,000,000,000,000 kg. </P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/www.universetoday.com/img/E0805C22-2398-4C9E-950D-94C874F6906C" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/"><P>But let's see if we can work out the original question, what's the biggest star in the <A rel="external" title="" class="alinks_links" href="http://www.universetoday.com/guide-to-space/the-universe/">Universe</A>? Obviously, it's impossible for us to actually find it – the Universe is a big place, and there's no way we can peer into every corner.
<A href="http://www.universetoday.com/wp-content/uploads/2008/04/pistolstar.jpg"><IMG width="248" height="250" class="alignnone size-thumbnail wp-image-13511" title="pistolstar" alt="Pistol Star, another star thought to be one of the largest. Image credit: Hubble" src="http://www.universetoday.com/wp-content/uploads/2008/04/pistolstar-248x250.jpg" /></A>
But according to theorists, how big can stars get?</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/www.universetoday.com/img/4133597E-B5D5-4660-99D2-74C23D4529C7" alt="Pistol Star, another star thought to be one of the largest. Image credit: Hubble" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.universetoday.com/2008/04/06/what-is-the-biggest-star-in-the-universe/"><div align="center"><embed src="http://www.youtube.com/v/EDNEV9EW06g&hl=en" height="329" width="400" wmode="opaque" quality="high" type="application/x-shockwave-flash"></embed></div></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/23829164-005B-4231-95FF-49191070C52C/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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