2009 DD45: Difference between revisions
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{{downsize|2009 DD<sub>45</sub>}} |
{{downsize|2009 DD<sub>45</sub>}} |
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'''2009 DD<sub>45</sub>''' is a small [[Apollo asteroid]] |
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'''2009 DD<sub>45</sub>''' is a small [[Apollo asteroid]]<ref name="JPL">{{cite web|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2009%20DD45;orb=1|title=JPL Small-Body Database Browser (2009 DD45)|publisher=[[Jet Propulsion Laboratory]]|date=2009-03-02|accessdate=2009-03-02}}</ref> that passed near [[Earth]] at an altitude of 63,500 km on [[2 March]] [[2009]] at 13:44 [[UTC]], discovered on [[28 February]] [[2009]], only two days before its closest approach to the Earth.<ref name="skytel">{{cite web|url=http://www.skyandtelescope.com/observing/highlights/40504617.html|title=Space Rock 2009 DD45 Buzzes Earth|date=2009 March 01|author=Kelly Beatty|publisher=[[Sky & Telescope]]}}</ref><ref name="natgeo">{{cite web|url=http://news.nationalgeographic.com/news/2009/03/090302-asteroid-earth.html|title=Surprise Asteroid Just Buzzed Earth|date=2009 March 02|author=Victoria Jaggard|publisher=[[National Geographic Society]]}}</ref> Its estimated diameter is between 21 and 47 meters.<ref name="JPL" /> The [[BBC]] sighted the minimum distance as 72,000 km (44,750 miles) (about .2 [[lunar distances]]). <ref name="BBC03"/> |
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<ref name="JPL">{{cite web|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2009%20DD45;orb=1|title=JPL Small-Body Database Browser (2009 DD45)|publisher=[[Jet Propulsion Laboratory]]|date=2009-03-02|accessdate=2009-03-02}}</ref> |
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that passed near [[Earth]] at an altitude of 63,500 km on [[2 March]] [[2009]] at 13:44 [[UTC]], discovered on [[28 February]] [[2009]], only two days before its closest approach to the Earth. |
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<ref name="skytel">{{cite web|url=http://www.skyandtelescope.com/observing/highlights/40504617.html|title=Space Rock 2009 DD45 Buzzes Earth|date=2009 March 01|author=Kelly Beatty|publisher=[[Sky & Telescope]]}}</ref> |
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<ref name="natgeo">{{cite web|url=http://news.nationalgeographic.com/news/2009/03/090302-asteroid-earth.html|title=Surprise Asteroid Just Buzzed Earth|date=2009 March 02|author=Victoria Jaggard|publisher=[[National Geographic Society]]}}</ref> |
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Its estimated diameter is between 21 and 47 meters. |
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<ref name="JPL" /> |
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The [[BBC]] cited the minimum distance as 72,000 km (44,750 miles) (about .2 [[lunar distances]]). <ref name="BBC03"/> |
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This is about the same size as the object that caused the [[Tunguska event]] in 1908. <ref name="BBC03">{{cite news|url=http://news.bbc.co.uk/1/hi/sci/tech/7921279.stm|title=Space rock makes close approach|date=2009-03-03|publisher=[[BBC News Online]]|accessdate=2009-03-03}}</ref> |
This is about the same size as the object that caused the [[Tunguska event]] in 1908. |
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<ref name="BBC03">{{cite news|url=http://news.bbc.co.uk/1/hi/sci/tech/7921279.stm|title=Space rock makes close approach|date=2009-03-03|publisher=[[BBC News Online]]|accessdate=2009-03-03}}</ref> |
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It passed farther away (40 thousand miles versus 4 thousand miles) but was substantially larger then [[2004 FU162]], a small asteroid about 6m (20ft) across which came within about 6,500km (4,000 miles) in 2004.<ref name="BBC03"/>, and is more similar in size to [[2004 FH]]. |
It passed farther away (40 thousand miles versus 4 thousand miles) but was substantially larger then [[2004 FU162]], a small asteroid about 6m (20ft) across which came within about 6,500km (4,000 miles) in 2004.<ref name="BBC03"/>, and is more similar in size to [[2004 FH]]. |
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Revision as of 18:18, 3 March 2009
Template:Downsize 2009 DD45 is a small Apollo asteroid [1] that passed near Earth at an altitude of 63,500 km on 2 March 2009 at 13:44 UTC, discovered on 28 February 2009, only two days before its closest approach to the Earth. [2] [3] Its estimated diameter is between 21 and 47 meters. [1] The BBC cited the minimum distance as 72,000 km (44,750 miles) (about .2 lunar distances). [4]
This is about the same size as the object that caused the Tunguska event in 1908. [4]
It passed farther away (40 thousand miles versus 4 thousand miles) but was substantially larger then 2004 FU162, a small asteroid about 6m (20ft) across which came within about 6,500km (4,000 miles) in 2004.[4], and is more similar in size to 2004 FH.
References
- ^ a b "JPL Small-Body Database Browser (2009 DD45)". Jet Propulsion Laboratory. 2009-03-02. Retrieved 2009-03-02.
- ^ Kelly Beatty (2009 March 01). "Space Rock 2009 DD45 Buzzes Earth". Sky & Telescope.
{{cite web}}: Check date values in:|date=(help) - ^ Victoria Jaggard (2009 March 02). "Surprise Asteroid Just Buzzed Earth". National Geographic Society.
{{cite web}}: Check date values in:|date=(help) - ^ a b c "Space rock makes close approach". BBC News Online. 2009-03-03. Retrieved 2009-03-03.
External links
- Universe Today article on 2009 DD45
- 100 meter asteroid will pass Earth Monday!, Phil Plait's Bad Astronomy blog
- NEO Asteroid 2009 DD45 from Canberra on YouTube
 | This near-Earth asteroid-related article is a stub. You can help Wikipedia by expanding it. |