About: (450894) 2008 BT18

Property	Value
dbo:Planet/apoapsis	5.2959142206507E8
dbo:Planet/orbitalPeriod	3.31
dbo:Planet/periapsis	1.350868772421E8
dbo:absoluteMagnitude	18.300000 (xsd:double)
dbo:abstract	2008 بي تي 18 (ويعرف أيضًا باسم (450894) 2008 بي تي 18 وفق تسمية الكوكب الصغير) (بالإنجليزية: 2008 BT18)‏ هو كويكب ضمن حزام الكويكبات؛ وترتيبه 450894 من حيث الاكتشاف.اكتُشف هذا الجُرم الفلكي بواسطة بحث لنكولن عن الكويكبات القريبة من الأرض في 31 يناير 2008. (ar) (450894) 2008 BT18 is a sub-kilometer asteroid and synchronous binary system, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It was discovered on 31 January 2008, by the LINEAR program at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The eccentric asteroid measures approximately 600 meters in diameter and has a composition of a basaltic achondrite. In 2008, its minor-planet moon, designated S/2008 (450894) 1, was discovered by radar astronomers. It measures approximately 200 meters in diameter, or one third of its primary. (en) (450894) 2008 BT18 ist ein Doppel-Kleinplanet, der am 14. Juli 2008 um ca. 17 Uhr MESZ der Erde bis zu 2,256 Millionen Kilometer (5,87fache Mondentfernung) nahe kam. (450894) 2008 BT18 besteht aus zwei Kleinplaneten mit einer Größe von etwa 200 und 600 Metern. Er wurde am 31. Januar 2008 durch LINEAR entdeckt. Am 6. Juli 2008 wurde 2008 BT18 am Arecibo-Observatorium in Puerto Rico als doppelter Kleinplanet identifiziert. (de) 2008 BT18 adalah sebuah asteroid. Asteroid ini merupakan bagian dari asteroid Apollo, yang terletak dekat dengan bumi. Eksentrisitas orbit asteroid ini tercatat sebesar 0.594, sementara magnitudo mutlaknya adalah 18.3. (in) (450894) 2008 BT18 è un asteroide del Sistema solare, scoperto il 31 gennaio 2008 nell'ambito del LINEAR, il programma di ricerca del Lincoln Laboratory del MIT per l'individuazione dei near-Earth object (NEO). Il 14 luglio 2008 l'asteroide è transitato a 0,0151 UA dalla Terra, pari a 5,9 distanze lunari. Il 6 ed il 7 luglio l'asteroide è stato oggetto di indagini per mezzo del radiotelescopio di Arecibo. Si è potuto così stabilire che si tratta di un asteroide binario. Il primario ha un diametro di circa 600 m ed un periodo di rotazione inferiore alle 3 ore. Per il satellite è stato stimato un diametro superiore ai 200 m. (it) 450894 2008 BT18 eller 2008 BT18 är en jordnära dubbelasteroid som korsar Jordens omloppsbana. Den upptäcktes den 31 januari 2008 av LINEAR projektet. Den tillhör asteroidgruppen Apollo. (sv)
dbo:albedo	0.200000 (xsd:double)
dbo:apoapsis	529591422065.070007 (xsd:double)
dbo:discovered	2008-01-31 (xsd:date)
dbo:discoverer	dbr:Lincoln_Near-Earth_Asteroid_Research
dbo:epoch	4 September 2017 (JD2458000.5)
dbo:formerName	(en)
dbo:orbitalPeriod	285984.000000 (xsd:double)
dbo:periapsis	135086877242.100006 (xsd:double)
dbo:thumbnail	wiki-commons:Special:FilePath/2008_BT18_arecibo.gif?width=300
dbo:wikiPageExternalLink	http://adsabs.harvard.edu/cgi-bin/bib_query%3Fbibcode=2008CBET.1450....1B http://obswww.unige.ch/~behrend/page_cou.html http://www.cbat.eps.harvard.edu/iau/cbet/001400/CBET001450.txt http://www.johnstonsarchive.net/astro/asteroidmoons.html http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php%3FAstInfo=450894%7C http://www.minorplanet.info/PHP/lcdbsummaryquery.php http://www.minorplanet.info/lightcurvedatabase.html https://books.google.com/books%3Fid=aeAg1X7afOoC&pg https://web.archive.org/web/20040608071121/http:/echo.jpl.nasa.gov/~lance/binary.neas.html https://web.archive.org/web/20171216050541/http:/www.minorplanet.info/lightcurvedatabase.html
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dbo:wikiPageRevisionID	1118120106 (xsd:integer)
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dbp:absMagnitude	18.300000 (xsd:double)
dbp:albedo	0.200000 (xsd:double)
dbp:aphelion	3.5401
dbp:argPeri	139.280000 (xsd:double)
dbp:ascNode	107.670000 (xsd:double)
dbp:background	#FFC2E0 (en)
dbp:caption	Radar image of and its satellite from Arecibo Observatory in July 2008 (en)
dbp:date	2017-12-16 (xsd:date)
dbp:dimensions	0.65 km (en)
dbp:discovered	2008-01-31 (xsd:date)
dbp:discoverer	dbr:Lincoln_Near-Earth_Asteroid_Research
dbp:discoverySite	dbr:Lincoln_Laboratory's_Experimental_Test_Site
dbp:earliestPrecoveryDate	1955-03-14 (xsd:date)
dbp:eccentricity	0.593500 (xsd:double)
dbp:epoch	2017-09-04 (xsd:date)
dbp:imageSize	250 (xsd:integer)
dbp:inclination	8.133800 (xsd:double)
dbp:meanAnomaly	284.480000 (xsd:double)
dbp:meanMotion	/ day (en)
dbp:minorplanet	yes (en)
dbp:moid	0.010800 (xsd:double)
dbp:mpCategory	(en) ApolloNEOPHA (en)
dbp:number	450894 (xsd:integer)
dbp:observationArc	1.912074984E9
dbp:perihelion	0.903
dbp:period	1.04455656E8
dbp:rotation	h (en)
dbp:satellites	1 (xsd:integer)
dbp:semimajor	2.2216
dbp:spectralType	VS (en)
dbp:uncertainty	0 (xsd:integer)
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gold:hypernym	dbr:Asteroid
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rdfs:comment	2008 بي تي 18 (ويعرف أيضًا باسم (450894) 2008 بي تي 18 وفق تسمية الكوكب الصغير) (بالإنجليزية: 2008 BT18)‏ هو كويكب ضمن حزام الكويكبات؛ وترتيبه 450894 من حيث الاكتشاف.اكتُشف هذا الجُرم الفلكي بواسطة بحث لنكولن عن الكويكبات القريبة من الأرض في 31 يناير 2008. (ar) (450894) 2008 BT18 ist ein Doppel-Kleinplanet, der am 14. Juli 2008 um ca. 17 Uhr MESZ der Erde bis zu 2,256 Millionen Kilometer (5,87fache Mondentfernung) nahe kam. (450894) 2008 BT18 besteht aus zwei Kleinplaneten mit einer Größe von etwa 200 und 600 Metern. Er wurde am 31. Januar 2008 durch LINEAR entdeckt. Am 6. Juli 2008 wurde 2008 BT18 am Arecibo-Observatorium in Puerto Rico als doppelter Kleinplanet identifiziert. (de) 2008 BT18 adalah sebuah asteroid. Asteroid ini merupakan bagian dari asteroid Apollo, yang terletak dekat dengan bumi. Eksentrisitas orbit asteroid ini tercatat sebesar 0.594, sementara magnitudo mutlaknya adalah 18.3. (in) 450894 2008 BT18 eller 2008 BT18 är en jordnära dubbelasteroid som korsar Jordens omloppsbana. Den upptäcktes den 31 januari 2008 av LINEAR projektet. Den tillhör asteroidgruppen Apollo. (sv) (450894) 2008 BT18 is a sub-kilometer asteroid and synchronous binary system, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It was discovered on 31 January 2008, by the LINEAR program at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The eccentric asteroid measures approximately 600 meters in diameter and has a composition of a basaltic achondrite. (en) (450894) 2008 BT18 è un asteroide del Sistema solare, scoperto il 31 gennaio 2008 nell'ambito del LINEAR, il programma di ricerca del Lincoln Laboratory del MIT per l'individuazione dei near-Earth object (NEO). Il 14 luglio 2008 l'asteroide è transitato a 0,0151 UA dalla Terra, pari a 5,9 distanze lunari. (it)
rdfs:label	(450894) 2008 BT18 (ar) (450894) 2008 BT18 (de) (450894) 2008 BT18 (en) (450894) 2008 BT18 (in) (450894) 2008 BT18 (it) 2008 BT18 (sv)
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foaf:name	(en) (450894) (en)
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