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	<title>Comments on: A glowing bubbly bauble in space</title>
	<atom:link href="http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/feed/" rel="self" type="application/rss+xml" />
	<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/</link>
	<description>I am an astronomer, writer, and skeptic. I likes reality the way it is, and I aims to keep it that way. My real name is Phil Plait, and I run the Bad Astronomy blog.</description>
	<lastBuildDate>Fri, 25 May 2012 07:33:39 +0000</lastBuildDate>
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	<item>
		<title>By: Nasa-Esa News &#38; Anomalies 2011 &#124; WhyNotNews.eu</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-410962</link>
		<dc:creator>Nasa-Esa News &#38; Anomalies 2011 &#124; WhyNotNews.eu</dc:creator>
		<pubDate>Sun, 28 Aug 2011 12:50:22 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-410962</guid>
		<description>[...] Hole 2 Billion x Size of the Sun ** 2011, July 28 Trojan Asteroid Seen in Earth&#8217;s Orbit ** A Glowing Bubbly Bauble in Space Russians Will Sink International Space Station in 2020 ** 2011, July 26 Rare Volcanoes Discovered [...]</description>
		<content:encoded><![CDATA[<p>[...] Hole 2 Billion x Size of the Sun ** 2011, July 28 Trojan Asteroid Seen in Earth&#8217;s Orbit ** A Glowing Bubbly Bauble in Space Russians Will Sink International Space Station in 2020 ** 2011, July 26 Rare Volcanoes Discovered [...]</p>
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	<item>
		<title>By: Kronberger 61, Nebula Berbentuk Bola &#171; MarsoumFlash</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-403138</link>
		<dc:creator>Kronberger 61, Nebula Berbentuk Bola &#171; MarsoumFlash</dc:creator>
		<pubDate>Tue, 02 Aug 2011 10:33:16 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-403138</guid>
		<description>[...] A glowing bubbly bauble in space [...]</description>
		<content:encoded><![CDATA[<p>[...] A glowing bubbly bauble in space [...]</p>
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	<item>
		<title>By: John Sandlin</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-402561</link>
		<dc:creator>John Sandlin</dc:creator>
		<pubDate>Sat, 30 Jul 2011 15:00:58 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-402561</guid>
		<description>stan_ccd found the nebula and posted the coordinates in the yahoo group for ccd-newastro:

http://tech.groups.yahoo.com/group/ccd-newastro/message/69648

So that you don&#039;t have to go there just to get the coordinates, they are:

RA: 19:21:39
DEC: +38:18:57
based on EPOC: 2000 coordinates

Thanks go out to Stan!

jbs</description>
		<content:encoded><![CDATA[<p>stan_ccd found the nebula and posted the coordinates in the yahoo group for ccd-newastro:</p>
<p><a href="http://tech.groups.yahoo.com/group/ccd-newastro/message/69648" rel="nofollow">http://tech.groups.yahoo.com/group/ccd-newastro/message/69648</a></p>
<p>So that you don&#8217;t have to go there just to get the coordinates, they are:</p>
<p>RA: 19:21:39<br />
DEC: +38:18:57<br />
based on EPOC: 2000 coordinates</p>
<p>Thanks go out to Stan!</p>
<p>jbs</p>
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	<item>
		<title>By: Amateur</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401923</link>
		<dc:creator>Amateur</dc:creator>
		<pubDate>Thu, 28 Jul 2011 06:16:07 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401923</guid>
		<description>The patch of sky I can capture is only 5 arcmin X 5 arcmin. Which is a little bigger than Kr 61. That&#039;s a big field to search. I&#039;ve tried to find it online but none of the articles list where to find it. Hopefully it&#039;ll pop up soon. Thanks for all your efforts, and thanks in advance whoever finds the exact RA/Dec.</description>
		<content:encoded><![CDATA[<p>The patch of sky I can capture is only 5 arcmin X 5 arcmin. Which is a little bigger than Kr 61. That&#8217;s a big field to search. I&#8217;ve tried to find it online but none of the articles list where to find it. Hopefully it&#8217;ll pop up soon. Thanks for all your efforts, and thanks in advance whoever finds the exact RA/Dec.</p>
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	<item>
		<title>By: John Sandlin</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401840</link>
		<dc:creator>John Sandlin</dc:creator>
		<pubDate>Wed, 27 Jul 2011 21:56:39 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401840</guid>
		<description>So far the best location I can find is a patch of sky between Cygnus and Lyra centered on RA 19h 22m 40s and DEC +44 30&#039; 00&quot;.  But the patch of sky is pretty good size, almost 1 degree from that center in all directions.</description>
		<content:encoded><![CDATA[<p>So far the best location I can find is a patch of sky between Cygnus and Lyra centered on RA 19h 22m 40s and DEC +44 30&#8242; 00&#8243;.  But the patch of sky is pretty good size, almost 1 degree from that center in all directions.</p>
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		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401739</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Wed, 27 Jul 2011 16:15:28 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401739</guid>
		<description>@30.   SkyGazer :

Aha! Found it. :-D

See : 

http://blogs.discovermagazine.com/badastronomy/2011/03/25/blast-site-blastocyte/ 

For the BA&#039;s take on that supernova remmnant you mentioned.  

White dwarf planets ~wise see :

http://www.space.com/6279-dead-stars-harbor-asteroids.html

and :

http://www.washington.edu/news/articles/uw-astrophysicist-white-dwarfs-could-be-fertile-ground-for-other-earths 

for more info. on that.</description>
		<content:encoded><![CDATA[<p>@30.   SkyGazer :</p>
<p>Aha! Found it. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_biggrin.gif' alt=':-D' class='wp-smiley' /> </p>
<p>See : </p>
<p><a href="http://blogs.discovermagazine.com/badastronomy/2011/03/25/blast-site-blastocyte/" rel="nofollow">http://blogs.discovermagazine.com/badastronomy/2011/03/25/blast-site-blastocyte/</a> </p>
<p>For the BA&#8217;s take on that supernova remmnant you mentioned.  </p>
<p>White dwarf planets ~wise see :</p>
<p><a href="http://www.space.com/6279-dead-stars-harbor-asteroids.html" rel="nofollow">http://www.space.com/6279-dead-stars-harbor-asteroids.html</a></p>
<p>and :</p>
<p><a href="http://www.washington.edu/news/articles/uw-astrophysicist-white-dwarfs-could-be-fertile-ground-for-other-earths" rel="nofollow">http://www.washington.edu/news/articles/uw-astrophysicist-white-dwarfs-could-be-fertile-ground-for-other-earths</a> </p>
<p>for more info. on that.</p>
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		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401734</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Wed, 27 Jul 2011 15:55:27 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401734</guid>
		<description>@ ^ Sky Gazer : You&#039;re right. It is indeed - I think the BA has already blogged on that one too if memory serves correctly. :-)

@29.   Amateur : &lt;i&gt;&quot;I was just wondering, does anyone have the RA/Dec for this object.&quot;&lt;/i&gt;

I don&#039;t know either and would love to as well - plus the answer to what is Kronberger 61&#039;s apparent magnitude? 

Can amateurs see it in average telescopes and average skies - does anyone know and care to enlighten us please? 

@26.   lqd : 

&lt;blockquote&gt;&lt;i&gt;What happens to the planets of a star that becomes a planetary nebula? If they aren’t gobbled up during the red giant phase, do they keep orbiting the white dwarf if the gravity is strong enough?&lt;/i&gt;&lt;/blockquote&gt;

Yes, I think they would. Fairly certain there is at least one white dwarf star known (&amp; posisbly more) that has disrupted / destroyed an object orbiting it whicvh you would presume existed previously. Planets are pretty hard to totally destroy. 

The recent issue (2nd July 2011) of &lt;i&gt;New Scientist&lt;/i&gt; magazine actually had an article on the possibility of habitable planets around white dwarf stars too which was titled &lt;i&gt;&quot;White Dwarf Worlds&quot;&lt;/i&gt; (cover) or &lt;i&gt;&quot;Star lite&quot;&lt;/i&gt; (given on the article itself, page 37) by Ken Croswell. 



</description>
		<content:encoded><![CDATA[<p>@ ^ Sky Gazer : You&#8217;re right. It is indeed &#8211; I think the BA has already blogged on that one too if memory serves correctly. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
<p>@29.   Amateur : <i>&#8220;I was just wondering, does anyone have the RA/Dec for this object.&#8221;</i></p>
<p>I don&#8217;t know either and would love to as well &#8211; plus the answer to what is Kronberger 61&#8242;s apparent magnitude? </p>
<p>Can amateurs see it in average telescopes and average skies &#8211; does anyone know and care to enlighten us please? </p>
<p>@26.   lqd : </p>
<blockquote><p><i>What happens to the planets of a star that becomes a planetary nebula? If they aren’t gobbled up during the red giant phase, do they keep orbiting the white dwarf if the gravity is strong enough?</i></p></blockquote>
<p>Yes, I think they would. Fairly certain there is at least one white dwarf star known (&amp; posisbly more) that has disrupted / destroyed an object orbiting it whicvh you would presume existed previously. Planets are pretty hard to totally destroy. </p>
<p>The recent issue (2nd July 2011) of <i>New Scientist</i> magazine actually had an article on the possibility of habitable planets around white dwarf stars too which was titled <i>&#8220;White Dwarf Worlds&#8221;</i> (cover) or <i>&#8220;Star lite&#8221;</i> (given on the article itself, page 37) by Ken Croswell.</p>
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		<title>By: SkyGazer</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401676</link>
		<dc:creator>SkyGazer</dc:creator>
		<pubDate>Wed, 27 Jul 2011 11:32:50 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401676</guid>
		<description>May I add this supernova remnant:
http://www.popsci.com/science/article/2011-07/x-ray-astronomy-uncovers-cosmic-anomaly

It´s beautiful!</description>
		<content:encoded><![CDATA[<p>May I add this supernova remnant:<br />
<a href="http://www.popsci.com/science/article/2011-07/x-ray-astronomy-uncovers-cosmic-anomaly" rel="nofollow">http://www.popsci.com/science/article/2011-07/x-ray-astronomy-uncovers-cosmic-anomaly</a></p>
<p>It´s beautiful!</p>
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		<title>By: Amateur</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401655</link>
		<dc:creator>Amateur</dc:creator>
		<pubDate>Wed, 27 Jul 2011 07:36:32 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401655</guid>
		<description>I was just wondering, does anyone have the RA/Dec for this object.</description>
		<content:encoded><![CDATA[<p>I was just wondering, does anyone have the RA/Dec for this object.</p>
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		<title>By: fintin</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401586</link>
		<dc:creator>fintin</dc:creator>
		<pubDate>Wed, 27 Jul 2011 01:13:27 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401586</guid>
		<description>It looks almost unreal, it&#039;s fantastic.</description>
		<content:encoded><![CDATA[<p>It looks almost unreal, it&#8217;s fantastic.</p>
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		<title>By: Dr.T</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401508</link>
		<dc:creator>Dr.T</dc:creator>
		<pubDate>Tue, 26 Jul 2011 19:05:33 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401508</guid>
		<description>Beautiful!!</description>
		<content:encoded><![CDATA[<p>Beautiful!!</p>
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		<title>By: lqd</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401501</link>
		<dc:creator>lqd</dc:creator>
		<pubDate>Tue, 26 Jul 2011 18:23:55 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401501</guid>
		<description>What happens to the planets of a star that becomes a planetary nebula? If they aren&#039;t gobbled up during the red giant phase, do they keep orbiting the white dwarf if the gravity is strong enough?</description>
		<content:encoded><![CDATA[<p>What happens to the planets of a star that becomes a planetary nebula? If they aren&#8217;t gobbled up during the red giant phase, do they keep orbiting the white dwarf if the gravity is strong enough?</p>
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		<title>By: Adam</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401478</link>
		<dc:creator>Adam</dc:creator>
		<pubDate>Tue, 26 Jul 2011 17:02:22 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401478</guid>
		<description>&quot;...and expels a huge wind of gas&quot;

duherherher</description>
		<content:encoded><![CDATA[<p>&#8220;&#8230;and expels a huge wind of gas&#8221;</p>
<p>duherherher</p>
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		<title>By: Ganzy</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401469</link>
		<dc:creator>Ganzy</dc:creator>
		<pubDate>Tue, 26 Jul 2011 16:09:57 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401469</guid>
		<description>Apologies.</description>
		<content:encoded><![CDATA[<p>Apologies.</p>
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		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401417</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Tue, 26 Jul 2011 12:55:36 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401417</guid>
		<description>@^  jennyxyzzy : True - but would you rather receive twelve &quot;Noxious Thorny Stinkweeds&quot; instead of a dozen roses or vice-versa? ;-)

@ 19. Dr Flimmer : Wait till they find (and accurately describe) a cricket ball-shaped nebula - &lt;b&gt;*then*&lt;/b&gt; we&#039;ll be talking! :-D

@12.   Carson Myers asked : &lt;i&gt;&quot;Is the blue star in the center of the nebula the core of the red-giant?&quot;&lt;/i&gt;

I think so, yes, that&#039;s the white dwarf or central planetary nebular star. It used to be the core of the red giant star which has now changed into a white dwarf as its outer layers have sloughed away. </description>
		<content:encoded><![CDATA[<p>@^  jennyxyzzy : True &#8211; but would you rather receive twelve &#8220;Noxious Thorny Stinkweeds&#8221; instead of a dozen roses or vice-versa? <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /> </p>
<p>@ 19. Dr Flimmer : Wait till they find (and accurately describe) a cricket ball-shaped nebula &#8211; <b>*then*</b> we&#8217;ll be talking! <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_biggrin.gif' alt=':-D' class='wp-smiley' /> </p>
<p>@12.   Carson Myers asked : <i>&#8220;Is the blue star in the center of the nebula the core of the red-giant?&#8221;</i></p>
<p>I think so, yes, that&#8217;s the white dwarf or central planetary nebular star. It used to be the core of the red giant star which has now changed into a white dwarf as its outer layers have sloughed away.</p>
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		<title>By: jennyxyzzy</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401416</link>
		<dc:creator>jennyxyzzy</dc:creator>
		<pubDate>Tue, 26 Jul 2011 12:42:53 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401416</guid>
		<description>What&#039;s in a name? that which we call a rose
By any other name would smell as sweet;</description>
		<content:encoded><![CDATA[<p>What&#8217;s in a name? that which we call a rose<br />
By any other name would smell as sweet;</p>
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		<title>By: Rowan</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401413</link>
		<dc:creator>Rowan</dc:creator>
		<pubDate>Tue, 26 Jul 2011 12:12:22 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401413</guid>
		<description>The mobile version of this site is broken, page 2 has no articles. Also the comment form is messed up. On iPhone 4.</description>
		<content:encoded><![CDATA[<p>The mobile version of this site is broken, page 2 has no articles. Also the comment form is messed up. On iPhone 4.</p>
]]></content:encoded>
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		<title>By: Ganzy</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401408</link>
		<dc:creator>Ganzy</dc:creator>
		<pubDate>Tue, 26 Jul 2011 11:55:13 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401408</guid>
		<description>Wow that is beautiful. It reminds me of an image I saw of the 
&lt;a href=&quot;http://4.bp.blogspot.com/_ln-S7XzA0gc/S8vZnI3CiKI/AAAAAAAAAjc/M67kkkxATmw/s1600/1952-test-02.jpg&quot; rel=&quot;nofollow&quot;&gt;Trinity test fireball&lt;/a&gt;.

Is there any relationship between the poly-gloubalar dynamics of the expanding Kronberger and trinity spheres?

If someone could tell me the correct terminology for what I am trying to describe, that would be appreciated too. Thanks.</description>
		<content:encoded><![CDATA[<p>Wow that is beautiful. It reminds me of an image I saw of the<br />
<a href="http://4.bp.blogspot.com/_ln-S7XzA0gc/S8vZnI3CiKI/AAAAAAAAAjc/M67kkkxATmw/s1600/1952-test-02.jpg" rel="nofollow">Trinity test fireball</a>.</p>
<p>Is there any relationship between the poly-gloubalar dynamics of the expanding Kronberger and trinity spheres?</p>
<p>If someone could tell me the correct terminology for what I am trying to describe, that would be appreciated too. Thanks.</p>
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		<title>By: DrFlimmer</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401394</link>
		<dc:creator>DrFlimmer</dc:creator>
		<pubDate>Tue, 26 Jul 2011 09:10:49 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401394</guid>
		<description>Soccerball-shape? I think, there is hope after all for you Americans. :D</description>
		<content:encoded><![CDATA[<p>Soccerball-shape? I think, there is hope after all for you Americans. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_biggrin.gif' alt=':D' class='wp-smiley' /> </p>
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		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401371</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Tue, 26 Jul 2011 05:05:37 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401371</guid>
		<description>BTW. This reminds me of the mystery regarding the planetary nebula  SuWt2 that the BA raised on this blog here : 

http://blogs.discovermagazine.com/badastronomy/2008/06/05/one-ring-to-fool-them-all/ 

back on the 5th June 2008. 

It was an odd nebula where a binary of sub-giant Sirian (type A) stars lie at the heart of the Planetary nebula rather than the expected white dwarf star. 

Please can you tell us BA if there has been any progress on that Planetary Nebula mystery at all?

Also please, what do you think of my idea that it might be the result of a massive rapidly spinning star like Achernar, Regulus and Altair ( http://kencroswell.com/RegulusIsOblate.html ) spinning up so fast that it split in half resulting in the two white sub-giants immersed in the old shell of gas and dust emitted by a former B or even O type &quot;shell star&quot; - such as for example  Zeta Tauri? 
( http://stars.astro.illinois.edu/sow/zetatau.html ) 

Is that plausible, a reasonable suggestion in this case do you think?</description>
		<content:encoded><![CDATA[<p>BTW. This reminds me of the mystery regarding the planetary nebula  SuWt2 that the BA raised on this blog here : </p>
<p><a href="http://blogs.discovermagazine.com/badastronomy/2008/06/05/one-ring-to-fool-them-all/" rel="nofollow">http://blogs.discovermagazine.com/badastronomy/2008/06/05/one-ring-to-fool-them-all/</a> </p>
<p>back on the 5th June 2008. </p>
<p>It was an odd nebula where a binary of sub-giant Sirian (type A) stars lie at the heart of the Planetary nebula rather than the expected white dwarf star. </p>
<p>Please can you tell us BA if there has been any progress on that Planetary Nebula mystery at all?</p>
<p>Also please, what do you think of my idea that it might be the result of a massive rapidly spinning star like Achernar, Regulus and Altair ( <a href="http://kencroswell.com/RegulusIsOblate.html" rel="nofollow">http://kencroswell.com/RegulusIsOblate.html</a> ) spinning up so fast that it split in half resulting in the two white sub-giants immersed in the old shell of gas and dust emitted by a former B or even O type &#8220;shell star&#8221; &#8211; such as for example  Zeta Tauri?<br />
( <a href="http://stars.astro.illinois.edu/sow/zetatau.html" rel="nofollow">http://stars.astro.illinois.edu/sow/zetatau.html</a> ) </p>
<p>Is that plausible, a reasonable suggestion in this case do you think?</p>
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		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401369</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Tue, 26 Jul 2011 04:35:26 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401369</guid>
		<description>For a good diagram of the Upsilon Andromedae system* to see what I mean there, see : 

http://blogs.discovermagazine.com/badastronomy/2010/05/24/nearby-planetary-system-is-seriously-screwed-up/ 

with more on Upsilon Andromedae here : 

http://blogs.discovermagazine.com/badastronomy/2010/10/21/sunburned-planet-turns-hot-face-away-from-star/ 

via the BA blog and here :

http://stars.astro.illinois.edu/sow/upsand.html

with photographic finderchart via Kaler&#039;s &lt;i&gt;&#039;Stars&#039;&lt;/i&gt; website if folks are curious. :-)

I&#039;m thinking if the Kronberger 61 exoplanetary system was like that - or even more messed up with several massive gas giant planets in Pluto-like eccentric and steeply tilted orbits - could that explain the nebula&#039;s shape? 

Has  / could anyone model or calculate this?

Such exoplanetary systems may be fairly rare although a number of exoplanets do appear to have odd even comet-like orbits (eg. HD 80606b,see BA blog &lt;i&gt;&#039;Weather sizzles on a planet that kisses its star&#039;&lt;/i&gt; posted January 28th, 2009 11:00 AM.) which could be a key factor couldn&#039;t it?
 
---------------

* Albeit a rather mistaken one of *our* solar system! Look close to our Sun to spot the mistakes. ;-)</description>
		<content:encoded><![CDATA[<p>For a good diagram of the Upsilon Andromedae system* to see what I mean there, see : </p>
<p><a href="http://blogs.discovermagazine.com/badastronomy/2010/05/24/nearby-planetary-system-is-seriously-screwed-up/" rel="nofollow">http://blogs.discovermagazine.com/badastronomy/2010/05/24/nearby-planetary-system-is-seriously-screwed-up/</a> </p>
<p>with more on Upsilon Andromedae here : </p>
<p><a href="http://blogs.discovermagazine.com/badastronomy/2010/10/21/sunburned-planet-turns-hot-face-away-from-star/" rel="nofollow">http://blogs.discovermagazine.com/badastronomy/2010/10/21/sunburned-planet-turns-hot-face-away-from-star/</a> </p>
<p>via the BA blog and here :</p>
<p><a href="http://stars.astro.illinois.edu/sow/upsand.html" rel="nofollow">http://stars.astro.illinois.edu/sow/upsand.html</a></p>
<p>with photographic finderchart via Kaler&#8217;s <i>&#8216;Stars&#8217;</i> website if folks are curious. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
<p>I&#8217;m thinking if the Kronberger 61 exoplanetary system was like that &#8211; or even more messed up with several massive gas giant planets in Pluto-like eccentric and steeply tilted orbits &#8211; could that explain the nebula&#8217;s shape? </p>
<p>Has  / could anyone model or calculate this?</p>
<p>Such exoplanetary systems may be fairly rare although a number of exoplanets do appear to have odd even comet-like orbits (eg. HD 80606b,see BA blog <i>&#8216;Weather sizzles on a planet that kisses its star&#8217;</i> posted January 28th, 2009 11:00 AM.) which could be a key factor couldn&#8217;t it?</p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;</p>
<p>* Albeit a rather mistaken one of *our* solar system! Look close to our Sun to spot the mistakes. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /> </p>
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		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401367</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Tue, 26 Jul 2011 04:25:25 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401367</guid>
		<description>Beautiful nebula, mysterious origin, fascinating science. I love it! :-) 

Looking at the steering wheel-like appearence of the barred spiral right next to it perhaps we could call this the Airbag nebula? ;-) 


&lt;blockquote&gt;&lt;i&gt; The overall symmetry of the nebula is striking — in fact, it’s sphericity makes me inclined to think the star is not part of a binary; the centrifugal force of two stars revolving around each other tends to flatten such nebula and create bizarre shapes (see Related Posts below). The filaments creating the soccerball-like structure are probably due to the nebula expanding into surrounding gas, compressing it (or a faster wind from the stellar core that has caught up with and slammed into the slower-moving red giant wind). I’ve never seen any other planetary nebula that looks quite like this one though. &lt;/i&gt;&lt;/blockquote&gt;

Could it be caused by the central star having a messed up system of exoplanets like Upsilon Andromedae where several massive exoplanets have severely inclined orbits?</description>
		<content:encoded><![CDATA[<p>Beautiful nebula, mysterious origin, fascinating science. I love it! <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' />  </p>
<p>Looking at the steering wheel-like appearence of the barred spiral right next to it perhaps we could call this the Airbag nebula? <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' />  </p>
<blockquote><p><i> The overall symmetry of the nebula is striking — in fact, it’s sphericity makes me inclined to think the star is not part of a binary; the centrifugal force of two stars revolving around each other tends to flatten such nebula and create bizarre shapes (see Related Posts below). The filaments creating the soccerball-like structure are probably due to the nebula expanding into surrounding gas, compressing it (or a faster wind from the stellar core that has caught up with and slammed into the slower-moving red giant wind). I’ve never seen any other planetary nebula that looks quite like this one though. </i></p></blockquote>
<p>Could it be caused by the central star having a messed up system of exoplanets like Upsilon Andromedae where several massive exoplanets have severely inclined orbits?</p>
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		<title>By: Jeff Fite</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401355</link>
		<dc:creator>Jeff Fite</dc:creator>
		<pubDate>Tue, 26 Jul 2011 03:21:10 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401355</guid>
		<description>@7, Josie:   That was a really nice post.  Thanks for sharing.

@11 Adam:   You may be on to something, there!  The convolutions DO suggest the surface of some, er...otherworldly brain.  Somebody get Josie a research grant and put her on the case!</description>
		<content:encoded><![CDATA[<p>@7, Josie:   That was a really nice post.  Thanks for sharing.</p>
<p>@11 Adam:   You may be on to something, there!  The convolutions DO suggest the surface of some, er&#8230;otherworldly brain.  Somebody get Josie a research grant and put her on the case!</p>
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		<title>By: John Sandlin</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401341</link>
		<dc:creator>John Sandlin</dc:creator>
		<pubDate>Tue, 26 Jul 2011 01:45:25 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401341</guid>
		<description>So if this star is stripping, does that make the picture NSFW?  Just wondering.

jbs</description>
		<content:encoded><![CDATA[<p>So if this star is stripping, does that make the picture NSFW?  Just wondering.</p>
<p>jbs</p>
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		<title>By: Brian Too</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/comment-page-1/#comment-401323</link>
		<dc:creator>Brian Too</dc:creator>
		<pubDate>Mon, 25 Jul 2011 23:54:31 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=35005#comment-401323</guid>
		<description>It&#039;s the Zetarians!  Run!!

Er, Warp Factor 2 Mr. Sulu!
</description>
		<content:encoded><![CDATA[<p>It&#8217;s the Zetarians!  Run!!</p>
<p>Er, Warp Factor 2 Mr. Sulu!</p>
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