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	<title>Astro@China &#187; 铱星</title>
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		<title>铱星闪光</title>
		<link>http://www.astrocn.com/beta/archives/617</link>
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		<pubDate>Tue, 05 Jan 2010 08:25:58 +0000</pubDate>
		<dc:creator>eonhy</dc:creator>
				<category><![CDATA[观测摄影]]></category>
		<category><![CDATA[铱星]]></category>
		<category><![CDATA[铱闪]]></category>

		<guid isPermaLink="false">http://www.astrocn.com/beta/?p=617</guid>
		<description><![CDATA[天空中那道看似流星的轨迹，其实是摩托罗拉公司发射组网的77颗铱星（注：实际组网卫星小于77颗）之中的一颗卫星过境时，天线反射阳光所产生的闪光。 以下是慢速模拟的铱星过境闪光动画：  铱星上张开的三片带有金属光泽的天线，是良好的反射面，正是这个特殊的设计让铱星闪光。]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.astrocn.com/beta/uploads/2010/01/Iridium_Satellite_2.jpg"></a><a href="http://www.astrocn.com/beta/uploads/2010/01/IMG_2009_11_18_0000927.jpg"><img class="alignnone size-medium wp-image-619" title="IMG_2009_11_18_0000927" src="http://www.astrocn.com/beta/uploads/2010/01/IMG_2009_11_18_0000927-600x400.jpg" alt="IMG_2009_11_18_0000927" width="600" height="400" /></a></p>
<p>天空中那道看似流星的轨迹，其实是摩托罗拉公司发射组网的77颗铱星（注：实际组网卫星小于77颗）之中的一颗卫星过境时，天线反射阳光所产生的闪光。</p>
<p>以下是慢速模拟的铱星过境闪光动画：<br />
<a href="http://www.astrocn.com/beta/uploads/2010/01/Flare_Simulation.gif"><img title="Flare_Simulation" src="http://www.astrocn.com/beta/uploads/2010/01/Flare_Simulation.gif" alt="Flare_Simulation" width="550" height="200" /></a></p>
<p> 铱星上张开的三片带有金属光泽的天线，是良好的反射面，正是这个特殊的设计让铱星闪光。</p>
<p><a href="http://www.astrocn.com/beta/uploads/2010/01/Iridium_Satellite_3.jpg"><img class="alignnone size-medium wp-image-620" title="Iridium_Satellite_3" src="http://www.astrocn.com/beta/uploads/2010/01/Iridium_Satellite_3-600x400.jpg" alt="Iridium_Satellite_3" width="600" height="400" /></a></p>
<p><a href="http://www.astrocn.com/beta/uploads/2010/01/Iridium_Satellite.jpg"><img class="alignnone size-medium wp-image-621" title="Iridium_Satellite" src="http://www.astrocn.com/beta/uploads/2010/01/Iridium_Satellite-600x399.jpg" alt="Iridium_Satellite" width="600" height="399" /></a></p>
<p><a href="http://www.astrocn.com/beta/uploads/2010/01/Iridium_Satellite_2.jpg"><img title="Iridium_Satellite_2" src="http://www.astrocn.com/beta/uploads/2010/01/Iridium_Satellite_2-600x400.jpg" alt="Iridium_Satellite_2" width="600" height="400" /></a></p>
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