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unit of length that light travels within one Earthyear; equal to just under 10 trillion kilometres (or about 6 trillion miles)

  • ly

  • light year

  • lightyear

  • l.y.

  • light-years

  • lightyears

  • light years



edit









LanguageLabelDescriptionAlso known as
English


light-year




unit of length that light travels within one Earthyear; equal to just under 10 trillion kilometres (or about 6 trillion miles)



  • ly

  • light year

  • lightyear

  • l.y.

  • light-years

  • lightyears

  • light years




Statements





instance of
















unit of length









1 reference







stated in





ISO 80000–3:2006: Quantities and units—Part 3: Space and time









section, verse, paragraph, or clause





3-1.C.a






















Q21652125









0 references










image



















1e16m comparison 10 light years sirius.png
1,024 × 768; 72 KB









media legend






Две сферы с радиусами 1 и 10 световых лет в сравнении с расстояниями от Земли до ближайших известных звёзд; размеры самих звёзд увеличены для улучшения восприятия. (Russian)









1 reference







imported from Wikimedia project





Russian Wikipedia









Wikimedia import URL





https://ru.wikipedia.org/?oldid=98238821
















conversion to SI unit
















9,460,800,000,000,000 metre









0 references
















9.460730 petametre









1 reference







stated in





ISO 80000–3:2006: Quantities and units—Part 3: Space and time









section, verse, paragraph, or clause





3-1.C.a
















conversion to standard unit
















9,460,800,000,000 kilometre









0 references
















9,460,731,000,000,000 metre









0 references
















5,878,625,541,248 mile









0 references
















946,073,100,000,000,000 centimetre









0 references
















9,460,731,000,000,000,000 millimetre









0 references
















31,039,143,016,731,900 foot









0 references
















372,469,718,092,929,000 inch









0 references
















10,346,381,005,577,300 yard









0 references
















0.3066014 parsec









0 references
















94,607,310,000,000,000 decimetre









0 references
















5,105,122,000,000 UK nautical miles









0 references
















47,028,910,479,538 furlong









0 references
















470,289,104,795,380 chain









0 references
















1,959,537,968,183 US leagues









0 references
















1,702,795,305,358 nautical leagues









0 references
















372,469,700,000,000,000,000,000 microinch









0 references
















5,108,386,000,000 US nautical miles









0 references
















1,958,371,270,863 UK leagues









0 references
















1,701,707,000,000 UK leagues









0 references
















9,460,731,000,000,000,000,000 micrometre









0 references










length
















9,460,730,472,580,800 metre









0 references










measured physical quantity
















length









1 reference







stated in





ISO 80000–3:2006: Quantities and units—Part 3: Space and time









section, verse, paragraph, or clause





3-1.C.a
















unit symbol

















ly (English)









1 reference






stated in





Ontology of units of Measure (OM) 1.8






















l.y. (English)









1 reference







stated in





ISO 80000–3:2006: Quantities and units—Part 3: Space and time









section, verse, paragraph, or clause





3-1.C.a























al (Romanian)









0 references

















св. лет (Russian)









0 references

















a.l. (French)









1 reference







stated in





ISO 80000–3:2006: Quantities and units—Part 3: Space and time









section, verse, paragraph, or clause





3-1.C.a























a.l. (Catalan)









0 references










described by source
















ISO 80000–3:2006: Quantities and units—Part 3: Space and time








section, verse, paragraph, or clause





3-1.C.a









0 references









Identifiers





Freebase ID
















/m/02wpm_









1 reference







stated in





Freebase Data Dumps









publication date





28 October 2013
















PSH ID
















544









0 references










Gran Enciclopèdia Catalana ID
















0219540









0 references










QUDT unit ID
















LightYear









0 references










Cultureel Woordenboek identifier
















natuurkunde-scheikunde-en-sterrenkunde/lichtjaar









0 references










Encyclopædia Britannica Online ID
















science/light-year









0 references










wurvoc.org measure ID
















light_year









0 references










Quora topic ID
















Light-years-astronomical-distance









0 references










Unified Astronomy Thesaurus ID
















919









0 references










Great Russian Encyclopedia Online ID
















3540699









0 references










Brockhaus Enzyklopädie online ID
















lichtjahr









0 references










Treccani ID
















anno-luce









1 reference







imported from Wikimedia project





Italian Wikipedia









Wikimedia import URL





https://it.wikipedia.org/w/index.php?title=Anno_luce&oldid=99499934
















UN/CEFACT common code
















B57









1 reference






stated in





Recommendation N. 20 - Codes for Units of Measure Used in International Trade - Revision 13 (Annexes I to III)















Store norske leksikon ID
















lysår









0 references













 


Sitelinks







edit






  • afwiki
    Ligjaar



  • amwiki
    የብርሃን ዓመት



  • angwiki
    Lēohtgēar



  • anwiki
    Anyo luz



  • arwiki
    سنة ضوئية



  • arzwiki
    سنه ضوئيه



  • astwiki
    Añu lluz



  • aswiki
    আলোক-বৰ্ষ



  • azbwiki
    ایشیق ایلی



  • azwiki
    İşıq ili



  • be_x_oldwiki
    Сьветлавы год



  • bewiki
    Светлавы год



  • bgwiki
    Светлинна година



  • bhwiki
    प्रकाश-बरिस



  • bnwiki
    আলোক বর্ষ



  • brwiki
    Bloavezh-gouloù



  • bswiki
    Svjetlosna godina



  • cawiki
    Any llum



  • ckbwiki
    ساڵی تیشکی



  • cswiki
    Světelný rok



  • cywiki
    Blwyddyn golau



  • dawiki
    Lysår



  • dewiki
    Lichtjahr



  • diqwiki
    Serra roşti



  • elwiki
    Έτος φωτός



  • emlwiki
    An luś



  • enwiki
    Light-year



  • eowiki
    Lumjaro



  • eswiki
    Año luz



  • etwiki
    Valgusaasta



  • euwiki
    Argi-urte



  • extwiki
    Añu lus



  • fawiki
    سال نوری



  • fiwiki
    Valovuosi



  • frwiki
    Année-lumière



  • fywiki
    Ljochtjier



  • ganwiki
    光年



  • gawiki
    Solasbhliain



  • glwiki
    Ano luz



  • guwiki
    પ્રકાશવર્ષ



  • hewiki
    שנת אור



  • hifwiki
    Prakash saal



  • hiwiki
    प्रकाश-वर्ष



  • hrwiki
    Svjetlosna godina



  • htwiki
    Ane-limyè



  • huwiki
    Fényév



  • hywiki
    Լուսային տարի



  • iawiki
    Anno luminal



  • idwiki
    Tahun cahaya



  • iowiki
    Lumyaro



  • iswiki
    Ljósár



  • itwiki
    Anno luce



  • jawiki
    光年



  • jvwiki
    Taun cahya



  • kawiki
    სინათლის წელიწადი



  • kbpwiki
    Mʊndʊsʊʊ pɩnaɣ



  • kkwiki
    Жарық жылы



  • kmwiki
    ឆ្នាំពន្លឺ



  • knwiki
    ಜ್ಯೋತಿರ್ವರ್ಷ



  • kowiki
    광년



  • kuwiki
    Sala tîrêjê



  • kywiki
    Жарык жылы



  • lawiki
    Annus luce mensus



  • lbwiki
    Liichtjoer



  • lfnwiki
    Anio de lus



  • lijwiki
    Annô lüxe



  • liwiki
    Leechjaor



  • lmowiki
    An lüce



  • lowiki
    ປີແສງ



  • ltwiki
    Šviesmetis



  • lvwiki
    Gaismas gads



  • mgwiki
    Taon-kazavana



  • mkwiki
    Светлосна година



  • mlwiki
    പ്രകാശവർഷം



  • mnwiki
    Гэрлийн жил



  • mrwiki
    प्रकाश-वर्ष



  • mswiki
    Tahun cahaya



  • mtwiki
    Sena dawl



  • mywiki
    အလင်းနှစ်



  • nahwiki
    Tlāhuīlxihuitl



  • ndswiki
    Lichtjohr



  • newiki
    प्रकाश वर्ष



  • nlwiki
    Lichtjaar



  • nnwiki
    Lysår



  • nowiki
    Lysår



  • nywiki
    Chaka Chowala



  • ocwiki
    Annada lutz



  • omwiki
    Wagga Iffa



  • orwiki
    ଆଲୋକବର୍ଷ



  • pawiki
    ਪ੍ਰਕਾਸ਼-ਸਾਲ



  • plwiki
    Rok świetlny



  • pmswiki
    Ann lus



  • pnbwiki
    چانن ورہ



  • ptwiki
    Ano-luz



  • quwiki
    Achkiy wata



  • rowiki
    An-lumină



  • ruewiki
    Світловый рік



  • ruwiki
    Световой год



  • sahwiki
    Сырдык сыла



  • sawiki
    प्रकाशवर्षः



  • scnwiki
    Annu luci



  • scowiki
    Licht-year



  • sdwiki
    نوري سال



  • shwiki
    Svjetlosna godina



  • simplewiki
    Light year



  • skwiki
    Svetelný rok



  • slwiki
    Svetlobno leto



  • sowiki
    Sano Ilays



  • sqwiki
    Dritëviti



  • srwiki
    Светлосна година



  • stqwiki
    Luchtjier



  • svwiki
    Ljusår



  • swwiki
    Mwakanuru



  • tawiki
    ஒளியாண்டு



  • tewiki
    కాంతి సంవత్సరం



  • thwiki
    ปีแสง



  • tkwiki
    Ýagtylyk ýyly



  • tlwiki
    Sinag-taon



  • trwiki
    Işık yılı



  • ttwiki
    Яктылык елы



  • udmwiki
    Югыт ар



  • ukwiki
    Світловий рік



  • urwiki
    نوری سال



  • uzwiki
    Yorugʻlik yili



  • vecwiki
    Ano luxe



  • viwiki
    Năm ánh sáng



  • vowiki
    Litayel



  • warwiki
    Tuig-lamrag



  • wuuwiki
    光年



  • yiwiki
    ליכט יאר



  • zh_classicalwiki
    光年



  • zh_min_nanwiki
    Kong-liân



  • zh_yuewiki
    光年



  • zhwiki
    光年








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