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2012 LZ1 - 版本历史
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2025-03-28T10:23:54Z
<p>修正笔误</p>
<p><b>新页面</b></p><div>{{inappropriate tone|time=2012-08-26T09:52:54+00:00}}<br />
{{DISPLAYTITLE:2012 LZ<sub>1</sub>}}<br />
{{Infobox planet<br />
| width = 25em<br />
| bgcolour = #FFFFC0<br />
| name = {{mp|2012 LZ|1}}<br />
| discovery = yes<br />
| discovery_ref = <ref name="MPEC2012-L30"/><br />
| discoverer = [[Siding Spring Survey]] ([[List of observatory codes#E00-E99|E12]])<br>0.5-m [[Uppsala Southern Schmidt Telescope|Uppsala Schmidt]]<br />
| discovered = 10 June 2012<br />
| mp_name = {{mp|2012 LZ|1}}<br />
| mp_category = [[Amor asteroid|Amor]] [[Near-Earth object|NEO]]<ref name="jpldata"/><br />
| orbit_ref = <ref name="jpldata"/><br />
| epoch = 2012-Mar-14<br>([[Uncertainty Parameter U|Uncertainty]]=2)<ref name=jpldata/><br />
| aphelion = 4.066 [[Astronomical unit|AU]] (Q)<br />
| perihelion = 1.036 AU (q)<br />
| semimajor = 2.551 AU (a)<br />
| eccentricity = 0.5937<br />
| period = 4.08 [[Julian year (astronomy)|yr]]<br />
| inclination = 26.27[[degree (angle)|°]]<br />
| asc_node = 264.6°<br />
| mean_anomaly = 334.7° (M)<br />
| arg_peri = 13.88°<br />
| physical_characteristics = yes<br />
| dimensions = ~1 km<ref name="usra"/><br />
| mass =<br />
| sidereal_day = 10 - 15 hr<ref name="usra"/><br />
| albedo = 0.02 - 0.04<ref name="usra"/><br />
| magnitude =<br />
| abs_magnitude = 19.8<ref name="jpldata"/><br />
}}<br />
'''{{mp|2012 LZ|1}}''' 是一顆直徑只有1公里的近地小行星, 它在2012年6月14日以14個月地距從地球身邊飛過, 它是由澳洲賽丁泉天文台(Siding Spring Observatory)的Robert H. McNaugh及同事在6月10及11日的兩個晚上所發現<ref name=space>{{cite web |url=http://www.space.com/16131-huge-asteroid-flyby-2012-lz1-webcast.html |title=Huge Asteroid to Fly by Earth Thursday: How to Watch Online |publisher=Space.com |date= |accessdate=2012-06-14 |archive-date=2020-11-12 |archive-url=https://web.archive.org/web/20201112012209/https://www.space.com/16131-huge-asteroid-flyby-2012-lz1-webcast.html |dead-url=no }}</ref>, 全球的天文台相繼投入觀測行列。<ref name="usra"/><br />
<br />
美國的Arecibo無線電天文台也在六月19日進行觀測, 確認其直徑大小及精準的軌道, 雖然它是對地球有威脅的小行星, 但2012 LZ1 在將來的750年內對地球的威脅機率是0。<br />
<br />
在2012年, {{mp|2012 LZ|1}}從地球旁邊擦身而過時, 最大的星等到達(視)星等13等上下,<ref name=CSM>{{cite web|url=http://www.csmonitor.com/Science/2012/0614/Humongous-asteroid-to-hurtle-past-Earth-Thursday-video|publisher=[[Christian Science Monitor]]|accessdate=2012-06-14|date=2012-06-14|title=Humongous asteroid to hurtle past Earth Thursday|archive-date=2017-08-01|archive-url=https://web.archive.org/web/20170801235933/https://www.csmonitor.com/Science/2012/0614/Humongous-asteroid-to-hurtle-past-Earth-Thursday-video|dead-url=no}}</ref> 下一次的擦身而過是在2016年七月27日, 距地球只有0.5AU (約為194個月地距) <ref name="NEODyS2016">{{cite web<br />
|title=2012 LZ1 Ephemerides for July 2016<br />
|publisher=NEODyS (Near Earth Objects - Dynamic Site)<br />
|url=http://newton.dm.unipi.it/neodys/index.php?pc=1.1.3.1&n=2012LZ1&oc=500&y0=2016&m0=7&d0=15&h0=0&mi0=0&y1=2016&m1=8&d1=15&h1=0&mi1=0&ti=1.0&tiu=days<br />
|accessdate=2012-06-15<br />
|archive-date=2016-03-04<br />
|archive-url=https://web.archive.org/web/20160304031112/http://newton.dm.unipi.it/neodys/index.php?pc=1.1.3.1&n=2012LZ1&oc=500&y0=2016&m0=7&d0=15&h0=0&mi0=0&y1=2016&m1=8&d1=15&h1=0&mi1=0&ti=1.0&tiu=days<br />
|dead-url=no<br />
}}</ref><br />
==延伸閱讀==<br />
*[[2005 YU55]], a near-Earth asteroid roughly half the size.<br />
*[[Near-Earth Asteroid Tracking]]<br />
<br />
==外部連結==<br />
{{reflist<br />
| refs =<br />
<br />
<ref name="MPEC2012-L30">{{cite web<br />
|title=MPEC 2012-L30 : 2012 LZ1<br />
|publisher=IAU Minor Planet Center<br />
|date=2012-06-12<br />
|url=http://www.minorplanetcenter.net/mpec/K12/K12L30.html<br />
|accessdate=2012-06-26<br />
|archive-date=2016-12-24<br />
|archive-url=https://web.archive.org/web/20161224054812/http://www.minorplanetcenter.net/mpec/K12/K12L30.html<br />
|dead-url=no<br />
}} (K12L01Z)</ref><br />
<br />
<ref name=jpldata>{{cite web<br />
|date=2012-06-25 <!-- last obs --><br />
|title=JPL Small-Body Database Browser: (2012 LZ1)<br />
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012LZ1;cad=1<br />
|publisher=Jet Propulsion Laboratory<br />
|accessdate=2012-06-26<br />
|archive-date=2019-08-22<br />
|archive-url=https://web.archive.org/web/20190822101838/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012LZ1;cad=1<br />
|dead-url=no<br />
}}</ref><br />
<br />
<ref name="usra">{{cite web<br />
|date = June 21, 2012<br />
|title = Arecibo Observatory Finds Asteroid 2012 LZ1 To Be Twice As Big As First Believed<br />
|publisher = Universities Space Research Association<br />
|author = Stacy Bowles<br />
|url = http://www.usra.edu/news/pr/2012/asteroid_LZ1/<br />
|accessdate = 2012-06-21<br />
|archive-url = https://web.archive.org/web/20120627075619/http://www.usra.edu/news/pr/2012/asteroid_LZ1/<br />
|archive-date = 2012-06-27<br />
|dead-url = yes<br />
}}</ref><br />
<br />
}}<br />
<br />
[[Category:近地小行星]]</div>
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