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Vidstan do Misyacya LD abo D L textstyle Delta oplus L yaku nazivayut takozh vidstan mizh Zemleyu ta Misyacem ce odinicya vimiru v astronomiyi Ye serednoyu vidstannyu vid centru Zemli do centru Misyacya Kazhuchi matematichno ce serednya velika pivvis geocentrichnoyi orbiti Misyacya Vidstannyu do Misyacya mozhut takozh nazivati userednenu za chasom vidstan mizh centrami Zemli ta Misyacya abo she tochnishe mittyevu vidstan Zemlya Misyac odinicya vimiryuvannyaVidstan do MisyacyaVidstannyu do Misyacya 384402 km nazivayut serednyu vidstan mizh Zemleyu j Misyacem Faktichna vidstan zminyuyetsya pozayak Misyac obertayetsya navkolo Zemli Na zobrazhenni zistavleni vidimi kutovi rozmiri Misyacya koli vin perebuvaye v najblizhchij i najdalshij tochci vidnosno Zemli Zagalna informaciyaSistema odinic AstronomiyaOdinicya VidstanPoznachennya LD abo D L textstyle Delta oplus L Pererahunok v inshi sistemi1 LD v dorivnyuye Osnovni odinici SI 384402 103 m Metrichna sistema 384402 km Astronomichna odinicya 0 002569 a o Vidstan do Misyacya dorivnyuye priblizno 400 000 km abo 250 000 mil Serednya dovzhina velikoyi pivosi dorivnyuye 384 402 km 1 Serednya za chasom vidstan mizh centrami Zemli ta Misyacya stanovit 385 000 6 km Faktichna vidstan kolivayetsya zalezhno vid polozhennya Misyacya na orbiti vid 356 500 km u perigeyi do 406 700 v apogeyi Riznicya mizh cimi velichinami stanovit 50 200 km 2 Vidstan do Misyacya zazvichaj vikoristovuyut dlya vimiryuvannya vidstanej do navkolozemnih ob yektiv 3 Krim togo vona ye vazhlivim astronomichnim pokaznikom yiyi vimiryuvannya z tochnistyu kilka chastin na triljon maye znachennya dlya testuvannya teorij gravitaciyi yak ot zagalna teoriya vidnosnosti 4 ta dlya utochnennya inshih astronomichnih velichin yak ot masa Zemli 5 radius Zemli 6 ta obertannya Zemli 7 Vimiryuvannya takozh korisne dlya harakteristiki diametra Misyacya masi Soncya ta vidstani do Soncya Vimiryuvannya vidstani do Misyacya z tochnistyu do milimetriv zdijsnyuyutsya shlyahom vimiryuvannya chasu neobhidnogo svitlu dlya prohodzhennya mizh lidarnimi stanciyami na Zemli ta retroreflektorami rozmishenimi na Misyaci Za dopomogoyu lazernoyi lokaciyi Misyacya viyavleno sho Misyac viddalyayetsya vid Zemli po spirali iz serednoyu shvidkistyu 3 8 sm na rik 8 9 10 Zmist 1 Velichini 2 Kolivannya 2 1 Perturbaciyi j ekscentrisitet 2 2 Priplivne rozsiyuvannya 2 3 Istoriya zmin orbiti Misyacya 3 Istoriya vimiryuvan 3 1 Paralaks 3 1 1 Misyachne zatemnennya 3 1 2 Prohodzhennya cherez meridian 3 1 3 Zatemnennya 3 2 Vimiryuvannya za dopomogoyu radariv 3 3 Lazerni vimiryuvannya vidstani 3 4 Astronomi lyubiteli ta gromadski vcheni 4 Div takozh 5 Posilannya 6 PosilannyaVelichini Redaguvati nbsp Vidstan mizh Zemleyu ta Misyacem rozmiri ta vidstan u masshtabi Vidstan do Misyacya virazhena u vibranih odinicyah Odinicya Serednye znachennya Neviznachenist RefMetr 3 84402 108 1 1 mm 1 Kilometr 384 402 1 1 mm 1 Milya Pomilka Lua u Modul Convert u ryadku 1851 attempt to index local en value a nil value 0 043 dyujma 1 Radius Zemli 60 32 11 Astronomichna velichina 1 388 6 000257 12 13 Svitlova sekunda 1 282 37 5 pikosekundi 1 Odna astronomichna velichina dorivnyuye 389 vidstanyam do Misyacya 14 Odin svitlovij rik dorivnyuye 24611 700 vidstanyam do Misyacya 14 15 Radius geostacionarnoyi orbiti stanovit 42 164 km vid centru Zemli abo 35 786 km vid poverhni Zemli Persha velichina dorivnyuye 1 9 117 0 10968 vidstani do Misyacya Kolivannya RedaguvatiMittyeva vidstan do Misyacya postijno zminyuyetsya Oskilki orbita ne ye krugovoyu realna vidstan mizh Misyacem i Zemleyu mozhe zminyuvatisya na 75 m s 2 tobto ponad 1000 km lishe za 6 godin 16 Isnuyut takozh inshi efekti yaki vplivayut na vidstan do Misyacya Deyaki faktori opisani v comu rozdili Perturbaciyi j ekscentrisitet Redaguvati Vidstan do Misyacya mozhna vimiryati z tochnistyu do 2 mm protyagom 1 godinnogo periodu vimiryuvan 17 sho zumovlyuye zagalnu neviznachenist 2 3 sm dlya serednoyi vidstani Odnak vnaslidok eliptichnosti orbiti zi zminnim ekscentrisitetom mittyeva vidstan zminyuyetsya z misyachnoyu periodichnistyu Krim togo vidstan zburyuyetsya gravitacijnim vplivom riznih astronomichnih til najbilshe Soncya desho menshe Yupitera Inshimi silami hvilinni zburennya zumovlyuyutsya gravitacijnim tyazhinnyam do inshih planet Sonyachnoyi sistemi ta asteroyidiv priplivam ta relyativistskimi efektami 18 Na vidstan do Misyacya vplivaye takozh tisk viprominyuvannya vid Soncya zminyuyuchi yiyi na velichinu 3 6 mm 17 Hocha mittyeva neviznachenist stanovit menshe milimetra protyagom tipovogo misyacya vimiryuvana vidstan do Misyacya mozhe zminyuvatisya bilshe nizh na 21 000 km vid serednogo znachennya Ci zburennya dobre vidomi 19 i vidstan do Misyacya mozhna tochno rozrahuvati na tisyachi rokiv vpered 18 nbsp Vidstan do Misyacya zistavlena z fazami Zemli ta Misyacya u 2014 roci Fazi misyacya 0 1 novij Misyac molodik 0 25 persha chvert 0 5 povnij Misyac 0 75 ostannya chvert nbsp Kolivannya vidstani mizh centrami Misyacya ta Zemli za 700 dniv Priplivne rozsiyuvannya Redaguvati Unaslidok diyi priplivnih sil kutovij impuls obertannya Zemli povilno perenositsya na orbitu Misyacya 20 Cherez ce shvidkist obertannya Zemli povilno zmenshuyetsya zi shvidkistyu 2 3 milisekundi na stolittya 21 a orbita Misyacya postupovo rozshiryuyetsya Potochna shvidkist cogo rozshirennya 3 805 0 004 mm na rik 19 Odnak isnuye dumka sho cej pokaznik ostannim chasom zbilshivsya oskilki znachennya 3 8 oznachalo b sho Misyacyu lishe 1 5 mlrd rokiv todi yak majzhe vsi naukovci pogodzhuyutsya z tim sho jogo vik pribl 4 mlrd rokiv 22 Vvazhayetsya takozh sho cej anomalno visokij temp viddalennya mozhe priskoryuvatisya 23 Prognozuyetsya sho vidstan do Misyacya prodovzhuvatime zbilshuvatisya doki teoretichno Zemlya i Misyac ne uvijdut u priplivne zahoplennya tobto doki voni ne pochnut obertatisya sinhronno yak i Pluton i Haron buduchi postijno povernuti odne do odnogo odnim bokom Ce trapitsya koli trivalist misyachnogo orbitalnogo periodu zrivnyayetsya z periodom obertannya Zemli yakij za ocinkami stanovitime 47 nashih suchasnih dniv Todi obidva tila uvijdut u stan rivnovagi i podalshe peredavannya obertalnoyi energiyi ne vidbuvatimetsya Odnak modeli peredbachayut sho dlya dosyagnennya takoyi konfiguraciyi znadobitsya 50 mlrd rokiv 24 sho znachno perevishuye ochikuvanij termin isnuvannya Sonyachnoyi sistemi Istoriya zmin orbiti Misyacya Redaguvati Lazerni vimiryuvannya svidchat sho serednya vidstan do Misyacya zbilshuyetsya Ce oznachaye sho v minulomu Misyac buv blizhche do Zemli a trivalist dnya na Zemli bula menshoyu Doslidzhennya skam yanilostej molyuskiv z epohi Kampanskogo yarusu 80 miljoniv rokiv tomu pokazuyut sho v ti chasi u zemnomu roci bulo 372 dni tobto trivalist dnya stanovila 23 godini 33 hv Ce oznachaye sho vidstan do Misyacya stanovila blizko 60 05 radiusa Zemli 383 000 km 20 Ye geologichni pidtverdzhennya togo sho protyagom dokembrijskoyi eri 2500 mln rr tomu serednya vidstan do Misyacya stanovila blizko 52 zemnih radiusi 332 000 km 22 Zagalnoprijnyata Model udarnogo formuvannya Misyacya stverdzhuye sho Misyac vinik vnaslidok katastrofichnogo zitknennya mizh Zemleyu j inshoyu planetoyu pislya yakogo ulamki yaki utvorilisya vnaslidok potuzhnogo udaru zibralisya pid diyeyu vlasnoyi gravitaciyi na pochatkovij vidstani 3 8 zemnogo radiusa vid Zemli 25 Cya teoriya peredbachaye sho zitknennya stalosya 4 5 mlrd rokiv tomu 26 Istoriya vimiryuvan RedaguvatiDo kincya 1950 h vsi rozrahunki vidstani do Misyacya bazuvalisya na optichnih kutovih vimiryuvannyah Najdavnishe tochne vimiryuvannya zdijsniv Gipparh u II stolitti do n e Kosmichna epoha znachno pokrashila tochnist nashih znan pro cyu velichinu Uprodovzh 1950 h ta 1960 h rokiv provodilisya eksperimenti z vikoristannyam radiolokacijnih lazernih kosmichnih korabliv ta komp yuternogo modelyuvannya 27 Cej rozdil maye na meti nadati ilyustraciyu deyakih istorichno znachushih abo cikavih chimos inshim metodiv viznachennya vidstani do Misyacya i ne pretenduye na te shob buti vicherpnim i vseohoplyuyuchim Paralaks Redaguvati Najdavnishij metod viznachennya vidstani do Misyacya peredbachav vimiryuvannya kuta mizh Misyacem ta obranoyu opornoyu tochkoyu z kilkoh misc odnochasno Sinhronizuvati chas vimiryuvan mozhna bulo zdijsnyuyuchi yih u zazdalegid viznachenij chas abo pid chas podiyi yaka sposterigayetsya vsima odnochasno Do vinahodzhennya tochnih mehanichnih hronometriv rol podiyi sinhronizaciyi zazvichaj vikonuvalo misyachne zatemnennya abo moment koli Misyac peretinav pevnij meridian yaksho sposterigachi roztashovuvalisya na tij samij dovgoti Cyu metodiku vimiryuvannya nazivayut misyachnij paralaks Dlya pidvishennya tochnosti neobhidno zdijsniti pevni nalashtuvannya yak ot regulyuvannya vimiryuvanogo kuta dlya vrahuvannya zalomlennya j spotvorennya svitla sho prohodit cherez atmosferu Misyachne zatemnennya Redaguvati Pid chas rannih sprob vimiryuvannya vidstani do Misyacya vikoristovuvali sposterezhennya za misyachnimi zatemnennyami a takozh znannya pro velichinu radiusa Zemli ta usvidomlennya togo sho Sonce nabagato dali vid Zemli nizh Misyac Sposterigayuchi geometriyu misyachnogo zatemnennya vidstan do Misyacya mozhna obchisliti za dopomogoyu prostih trigonometrichnih formul Najdavnishimi svidoctvami pro sprobi vimiryuvannya vidstani do Misyacya za dopomogoyu ciyeyi metodiki ye rozrahunki greckogo astronoma j matematika Aristarhom Samoskogo zdijsneni u IV st do n e 28 a piznishe rozrahunki Gipparha yakij viznachiv sho vidstan do Misyacya stanovit 59 67 zemnih radiusiv 29 Piznishe cej metod zustrichayetsya v roboti Ptolemeya 30 yakij otrimav rezultat 64 1 6 u najdalshij tochci 31 Prohodzhennya cherez meridian Redaguvati Uchasniki ekspediciyi francuzkogo astronoma Endryu Kloda de lya Sherua Krommelina sposterigali prohodzhennya Misyacya cherez toj samij meridian tiyeyi zh nochi z dvoh riznih misc Zavdyaki retelnim vimiryuvannyam 1905 1910 rr vdalosya vimiryati kut visoti v toj moment koli konkretnij misyachnij krater Mosting A peretnuv miscevij meridian zi stanciyi u Grinvichi ta na misi Dobroyi Nadiyi yaki roztashovani majzhe tij samij dovgoti 32 Vidstan rozrahovuvali z pohibkoyu v 30 km Cya velichina zalishalasya zagalnoprijnyatim znachennyam vidstani do Misyacya vprodovzh nastupnih 50 rokiv Zatemnennya Redaguvati Fiksuyuchi moment koli Misyac pokrivaye fonovu zoryu abo analogichnim chinom vimiryuyuchi kut mizh Misyacem ta fonovoyu zoreyu v zazdalegid viznachenij moment mozhna viznachiti vidstan do Misyacya yaksho vimiryuvannya provodyatsya z kilkoh vidomih misc rozdilenih pevnoyu vidstannyu U 1952 r astronomi O Kif ta Anderson obchislili vidstan do Misyacya sposterigayuchi chotiri pokrittya z dev yati riznih lokacij 33 Za yihnimi rozrahunkami serednyu vidstan stanovit 384 407 6 4 7 km V 1962 roci ce znachennya utochnila Iren Fisher yaka vrahuvala onovleni geodezichni dani Vona otrimala znachennya 384 403 7 2 km 6 Vimiryuvannya za dopomogoyu radariv Redaguvati U 1957 r u Vijskovo morskij laboratoriyi SShA zdijsnili eksperiment iz fiksaciyi vidlunnya vid radiolokacijnih signaliv z metoyu viznachiti vidstan Zemlya Misyac Radiolokacijni impulsi trivalistyu 2 mks translyuvalisya z 50 futovoyi 15 metrovoyi radiotarilki Pislya togo yak radiohvili vidlunilisya vid poverhni Misyacya bulo zafiksovano zvorotnij signal i vimiryano chas zatrimki Ce davalo zmogu obchisliti podolanu vidstan Utim na praktici spivvidnoshennya signal shum viyavilosya nastilki nizkim sho zdijsniti tochne vimiryuvannya ne vdalosya 34 Eksperiment povtorili u 1958 roci v Korolivskij radiolokacijnij ustanovi v Angliyi Radiolokacijni impulsi trivalistyu 5 mks peredavalisya z pikovoyu potuzhnistyu 2 MVt zi shvidkistyu 260 impulsiv na sekundu Bulo viyavleno zvorotnij signal i vimiryano chas zatrimki Kilka signaliv skladali razom shob otrimati nadijnij signal nakladayuchi slidi oscilografa na fotoplivku Vimiryuvannya dali zmogu obchisliti vidstan iz neviznachenistyu 1 25 km 35 Ci pochatkovi eksperimenti mali na meti radshe pidtverditi koncepciyu i trivali lishe odin den Podalshi eksperimenti trivalistyu odin misyac dali serednye znachennya 384 402 1 2 km 36 Ce bulo najtochnishe vimiryuvannya vidstani do Misyacya na toj chas Lazerni vimiryuvannya vidstani Redaguvati nbsp Eksperiment iz vimiryuvannya vidstani do Misyacya za dopomogoyu lazera pid chas misiyi Apollon 11 Eksperiment pid chas yakogo vimiryuvalasya trivalist polotu lazernih impulsiv vidbitih bezposeredno vid poverhni Misyacya zdijsnili v 1962 roci komanda Massachusetskogo tehnologichnogo institutu ta radyanskoyu komandoyu Krimskoyi astrofizichnoyi observatoriyi 37 Pid chas misij Apollon v 1969 roci kosmonavti rozmishuvali na poverhni Misyacya retroreflektori z metoyu zbilshennya tochnosti ciyeyi metodiki Vimiryuvannya trivayut i sogodni i vklyuchayut bagato lazernih ustanovok Mittyeva tochnist eksperimentiv iz lazernoyu lokaciyeyu Misyacya zdatna zabezpechuvati tochnist menshe milimetra i ye najnadijnishim suchasnim metodom viznachennya vidstani do Misyacya Astronomi lyubiteli ta gromadski vcheni Redaguvati Zavdyaki suchasnij dostupnosti tochnih pristroyiv sinhronizaciyi cifrovih fotoaparativ visokoyi rozdilnoyi zdatnosti GPS prijmachiv potuzhnih komp yuteriv ta majzhe mittyevogo zv yazku astronomi lyubiteli nabuli mozhlivosti zdijsnyuvati visokotochni vimiryuvannya vidstani do Misyacya vlasnoruch 23 travnya 2007 r bulo otrimano cifrovi fotografiyi Misyacya pid chas pokrittya Regulu z dvoh viddalenih lokacij u Greciyi ta Angliyi Pislya vimiryuvannya paralaksu mizh Misyacem ta vibranoyu fonovoyu zirkoyu bulo rozrahovano vidstan do Misyacya 38 Pid chas misyachnogo zatemnennya 15 kvitnya 2014 roku bulo provedeno bilsh masshtabnij proekt pid nazvoyu Aristarchus Campaign 16 Uchasnikam bulo zaproponovano zapisati seriyu z p yati cifrovih fotografij vid shodu misyacya do kulminaciyi tochka z najbilshoyu visotoyu Metod vikoristovuye toj fakt sho Misyac fizichno blizhche do sposterigacha koli vin perebuvaye u najvishij tochci neba porivnyano z tim koli vin perebuvaye poblizu gorizontu Hocha zdayetsya sho Misyac najbilshij koli vin znahoditsya poblizu gorizontu naspravdi virne zvorotne Ce yavishe nazivayut ilyuziya Misyacya Jogo prichina polyagaye v tomu sho vidstan vid centru Misyacya do centru Zemli majzhe nezminna protyagom vsiyeyi nochi ale sposterigach na poverhni Zemli naspravdi perebuvaye na vidstani v odin radius Zemli vid centru Zemli Cej zsuv nablizhaye jogo do Misyacya koli toj visit nad golovoyu Suchasni kameri vzhe dosyagli takogo rivnya rozdilnoyi zdatnosti sho zdatni zahopiti Misyac iz dostatnoyu tochnistyu shob viokremiti i sho vazhlivishe vimiryati cyu krihitnu zminu u vidimih rozmirah Rozrahunki zdijsneni v ramkah cogo eksperimentu dali dlya vidstani do Misyacya znachennya 60 51 3 91 4 19 zemnogo radiusa Prijnyate znachennya za tu nich stanovilo 60 61 sho oznachalo 3 vu tochnist Perevaga cogo metodu polyagaye v tomu 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