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Navkolozemni ob yekti NZO ob yekti Sonyachnoyi sistemi yaki v hodi svogo orbitalnogo ruhu mozhut nablizhatisya do Zemli Za domovlenistyu tilo Sonyachnoyi sistemi vvazhayetsya navkolozemnim ob yektom yaksho v perigeliyi vono nablizhayutsya do Soncya na vidstan menshe 1 3 a o 2 Yaksho orbita navkolozemnogo ob yekta peretinaye orbitu Zemli a jogo rozmir perevishuye 140 metriv to tilo vvazhayetsya potencijno nebezpechnim ob yektom 3 2 Vgori zliva zobrazhennya navkolozemnogo asteroyida 2006 DP14 vikonane na osnovi danih radiolokacijnoyi anteni DSN Vgori sprava zobrazhennya malopomitnogo navkolozemnogo asteroyida 2009 FD vidilenij kruzhechkom vikonane teleskopom VLT Poseredini zobrazhennya navkolozemnoyi kometi 103P Gartli vikonane zondom NASA Deep Impact Vnizu stanom na 25 listopada 2018 roku ye 19 229 vidomih NZO yaki umovno dilyatsya na kilka pidgrup 1 Kometi 107 0 6 Atira 31 0 2 Aton 1411 7 3 Apollon 9559 49 7 Amur 8120 42 2 Asteroyid 4179 Toutatis potencijno nebezpechnij ob yekt yakij projshov na 2 3 misyachni vidstani vid Zemli Stanom na 31 travnya 2023 roku vidomo ponad 32 103 vidomih navkolozemnih asteroyidiv i bilshe sotni vidomih korotkoperiodichnih navkolozemnih komet NEC Kilka meteoroyidiv yaki obertalisya na sonyachnij orbiti buli dostatno velikimi shob yih mozhna bulo vidstezhuvati v kosmosi do togo yak voni zitknulisya z Zemleyu Zitknennya z navkolozemnimi ob yektami v minulomu vidigrali znachnu rol u geologichnij ta biologichnij istoriyi Zemli 4 Asteroyid rozmirom do 20 metriv mozhe zavdati znachnoyi shkodi navkolishnomu seredovishu ta lyudyam 5 Bilshi asteroyidi pronikayut cherez atmosferu do poverhni Zemli stvoryuyuchi krateri yaksho voni padayut na sushu abo cunami yaksho voni padayut u more Interes do navkolozemnih ob yektiv pochav zrostati z 1980 h rokiv cherez bilshu obiznanist pro ce dzherelo nebezpeki Zaraz doslidzhuyutsya metodi zapobigannya zitknennyu asteroyida z Zemleyu shlyahom zmini jogo orbiti a takozh metodi pom yakshennya naslidkiv takogo zitknennya 6 Dlya ocinki rivnya nebezpeki zitknennya ta serjoznosti mozhlivih naslidkiv vikoristovuyutsya dvi najbilsh populyarni shkali prostisha shkala Torino ta bilsh skladna shkala Palermo Pochinayuchi z 1998 roku SShA YeS ta inshi krayini skanuyut nebo v poshukah navkolozemnih asteroyidiv u ramkah proyektiv zahistu vid asteroyidiv 7 Pochatkovim zavdannyam Kongresu SShA do NASA bulo katalogizuvati prinajmni 90 navkolozemnih ob yektiv rozmirom ponad 1 km tobto zdatnih pid chas zitknennya z Zemleyu viklikati globalnu katastrofu Cyu cil bulo dosyagnuto do 2011 roku i v nastupni roki doslidzhennya bulo rozshireno 8 shob vklyuchiti menshi ob yekti 9 yaki mozhut zavdati velikomasshtabnoyi hocha j ne globalnoyi shkodi Navkolozemni ob yekti mayut nizku poverhnevu gravitaciyu i bagato z nih mayut orbiti blizki do zemnoyi sho robit yih legkimi cilyami dlya kosmichnih korabliv 10 11 Stanom na sichen 2019 p yat navkolozemnih komet 12 13 14 i p yat navkolozemnih asteroyidiv buli vidvidani kosmichnimi korablyami 15 16 17 18 19 Nevelikij zrazok odnogo navkolozemnogo asteroyida buv povernutij na Zemlyu v 2010 roci i podibni misiyi trivayut 18 19 Privatnimi startap kompaniyami buli rozrobleni poperedni plani komercijnogo girnichopromislovogo osvoyennya asteroyidiv za dopomogoyu robotiv abo astronavtiv shahtariv 20 Zmist 1 Viznachennya 2 Istoriya doslidzhennya 2 1 Rizik 2 1 1 Shkali riziku 2 1 2 Velichina riziku 2 1 3 Visoko ocineni riziki 2 2 Proyekti z minimizaciyi zagrozi 3 Chiselnist i klasifikaciya 3 1 Sposterezhni uperedzhennya 4 Div takozh 5 Dzherela 6 PosilannyaViznachennya RedaguvatiNavkolozemni ob yekti za domovlenistyu viznachayutsya yak usi mali tila Sonyachnoyi sistemi z orbitami navkolo Soncya yaki chastkovo znahodyatsya na vidstani vid 0 983 do 1 3 astronomichnih odinic vid Soncya 21 22 Takim chinom navkolozemni ob yekti ne obov yazkovo zaraz znahodyatsya poblizu Zemli ale voni potencijno mozhut nablizitisya do Zemli vidnosno blizko Termin takozh inodi vikoristovuyetsya bilsh gnuchko napriklad dlya ob yektiv na orbiti navkolo Zemli abo dlya kvazisuputnikiv 23 Koli vidkrivayut navkolozemnij asteroyid yak i dlya vsih inshih malih til Sonyachnoyi sistemi jogo polozhennya ta yaskravist peredayutsya do Centru malih planet MPC Mizhnarodnogo astronomichnogo soyuzu dlya katalogizaciyi MPC vede okremi spiski pidtverdzhenih ta potencijnih navkolozemnih ob yektiv 24 25 Orbiti deyakih navkolozemnih ob yektiv peretinayutsya z orbitoyu Zemli i voni stanovlyat nebezpeku zitknennya 26 Voni vvazhayutsya potencijno nebezpechnimi ob yektami yaksho za ocinkoyu yih diametr perevishuye 140 metriv 27 Navkolozemni asteroyidi takozh katalogizuyutsya dvoma okremimi pidrozdilami Laboratoriyi reaktivnogo ruhu NASA Centrom doslidzhennya navkolozemnih ob yektiv CNEOS 28 i Grupoyu dinamiki sonyachnoyi sistemi Istoriya doslidzhennya RedaguvatiPershimi navkolozemnimi ob yektami yaki sposterigala lyudina buli kometi Yih pozazemnu prirodu bulo viznano ta pidtverdzheno lishe pislya togo yak Tiho Brage sprobuvav vimiryati vidstan do kometi cherez yiyi paralaks u 1577 roci i nizhnya mezha yaku vin otrimav bula znachno vishoyu za diametr Zemli Periodichnist deyakih komet bula vpershe viznana v 1705 roci koli Edmond Gallej opublikuvav svoyi rozrahunki orbiti periodichnoyi kometi teper vidomoyi yak kometa Galleya 29 Povernennya kometi Galleya v 1758 1759 rokah bulo pershoyu peredbachenoyu poyavoyu kometi 30 Vvazhayetsya sho pershim viyavlenim navkolozemnim ob yektom stala kometa Leksela 1770 roku 31 Pershim vidkritim navkolozemnim asteroyidom stav 433 Eros u 1898 roci 32 Bulo provedeno kilka masshtabnih program sposterezhen cogo asteroyida bo vimiryuvannya jogo orbiti dali zmogu pidvishiti tochnist viznachennya vidstani vid Zemli do Soncya 33 U 1937 roci buv vidkritij asteroyid 69230 Germes koli vin projshov povz Zemlyu na vidstani yaka lishe vdvichi perevishuvala vidstan do Misyacya 34 Germes vvazhavsya zagrozoyu oskilki buv zagublenij pislya vidkrittya a jogo orbita ta mozhlivist zitknennya iz Zemleyu ne buli tochno vidomi 35 Germes buv povtorno vidkritij lishe v 2003 roci i teper vidomo sho vin ne stanovit zagrozi prinajmni protyagom nastupnogo stolittya 34 14 chervnya 1968 roku asteroyid 1566 Ikar diametrom 1 4 km projshov povz Zemlyu na vidstani 0 042 a o 16 misyachnih vidstanej 36 Pid chas cogo prohodzhennya Ikar stav pershoyu maloyu planetoyu yaku sposterigali za dopomogoyu radara z observatorij Gejstek 37 i Goldstoun 38 Ce bulo pershe tisne zblizhennya asteroyida iz Zemleyu peredbachene za bagato rokiv zazdalegit Ikar bulo vidkritij 1949 roku Vono privernulo znachnu uvagu gromadskosti zavdyaki rozpovsyudzhennyu panichnih novin 39 Za rik do zblizhennya z asteroyidom studenti Massachusetskogo tehnologichnogo institutu zapustili proyekt Ikar rozroblyayuchi plan vidhilennya asteroyida za dopomogoyu raket na vipadok yaksho vin viyavitsya na shlyahu zitknennya iz Zemleyu 40 Proyekt Ikar otrimav shiroke visvitlennya v zasobah masovoyi informaciyi ta nadihnuv film katastrofu Meteor 1979 roku u yakomu SShA ta SRSR ob yednuyut zusillya shob pidirvati fragment asteroyida yakij letit na Zemlyu 41 23 bereznya 1989 roku 300 metrovij asteroyid 4581 Asklepij projshov povz Zemlyu na vidstani 700 000 km Yakbi asteroyid zitknuvsya iz Zemleyu ce sprichinilo b vibuh ekvivalentnij 20 000 megatonnam trotilu Asteroyid privernuv shiroku uvagu bo buv viyavlenij lishe pislya najtisnishogo zblizhennya iz Zemleyu 42 U berezni 1998 roku ranni rozrahunki orbiti neshodavno vidkritogo asteroyida 35396 1997 XF11 pokazali potencijne nablizhennya 2028 roku na vidstan 46 000 km vid Zemli u mezhah orbiti Misyacya ale z velikoyu pohibkoyu sho ne viklyuchalo mozhlivist pryamogo vluchannya v Zemlyu Podalshi dani zminili vidstan nablizhennya na 960 000 km i viklyuchili mozhlivist zitknennya Ale do togo chasu netochni povidomlennya pro mozhlive zitknennya vzhe viklikali buryu v ZMI 43 Rizik Redaguvati Uprodovzh istoriyi lyudstva vidnoshennya do navkolozemnih ob yektiv zminyuvalos 44 Yih rozglyadali yak oznaki stihijnih lih abo voyen bezpechni vidovisha v nezminnomu vsesviti dzherelo epohalnih kataklizmiv 44 abo potencijno otrujnih vipariv pid chas prohodzhennya Zemli cherez hvist kometi Galleya v 1910 roci 45 i nareshti yak mozhlivu prichinu utvorennya krateriv sho mozhe navit sprichiniti zniknennya lyudej ta inshogo zhittya na Zemli 44 Pro nebezpeku navkolozemnih komet pochali zamislyuvatis shojno buli viznacheni yihni pershi orbiti 1694 roku Edmond Gallej predstaviv teoriyu pro te sho vsesvitnij potop u Bibliyi buv sprichinenij udarom kometi 46 Protyagom podalshih doslidzhen navkolozemnih ob yektiv yih naukovci i gromadskist sprijmali yih to yak bezpechni j charivni nebesni yavisha to yak zagrozlivi ob yekti vbivci 47 Mozhlivist navkolozemnih ob yektiv stvoryuvati krateri nabagato bilshi yihnogo vlasnogo rozmiru ta spravlyati oposeredkovanij vpliv na she shirshu teritoriyu bula ostatochno viznana v 1980 ti roki pislya pidtverdzhennya teoriyi pro te sho krejdove vimirannya zokrema vimirannya dinozavriv 65 miljoniv rokiv tomu bulo sprichinene udarom velikogo asteroyida 48 49 Obiznanist gromadskosti pro rizik zitknennya zrosla pislya sposterezhennya za zitknennyam ulamkiv kometi Shumejkeriv Levi 9 z Yupiterom u lipni 1994 roku 50 51 U 1998 roci filmi Zitknennya z bezodneyu i Armageddon populyarizuvali ideyu pro te sho navkolozemni ob yekti mozhut sprichiniti katastrofichni naslidki 51 Todi zh vinikla i nabula poshirennya v Interneti teoriya zmovi pro zitknennya z vigadanoyu planetoyu Nibiru yake spochatku ochikuvalos u 2003 roci potim bulo pereneseno na 2012 a potim na 2017 rik 52 Shkali riziku Redaguvati Isnuye dvi shemi naukovoyi klasifikaciyi nebezpeki zitknennya z navkolozemnimi ob yektami za prostishoyu Turinskoyu shkaloyu ocinyuyetsya rizik udaru v nastupni 100 rokiv zalezhno vid energiyi udaru ta jmovirnosti udaru vikoristovuyuchi cili chisla vid 0 do 10 53 54 za skladnishoyu Palermskoyu shkaloyu riziki ocinyuyutsya dodatnimi chi vid yemnimi dijsnimi chislami i zalezhat vid fonovoyi chastoti zitknen jmovirnosti zitknennya ta chasu do mozhlivogo zitknennya V oboh shkalah riziki varti uvagi poznachayutsya dodatnimi chislami 55 Velichina riziku Redaguvati U shkali Palermo richna fonova chastota zitknen z energiyeyu ponad E megatonn ocinyuyetsya yakf B 0 03 E 0 8 displaystyle f B 0 03E 0 8 nbsp Napriklad cya formula peredbachaye sho ochikuvane znachennya chasu vid teperishnogo momentu do nastupnogo zitknennya z energiyeyu ponad 1 megatonnu stanovit 33 roki Cya formula dijsna lishe v pevnomu diapazoni E i maye znachni neviznachenosti Napriklad togo zh 2002 roku koli bula opublikovana shkala Palermo v inshij statti buv zaproponovanij zakon z suttyevo menshoyu chastotoyu zitknen 56 f B 0 00737 E 0 9 displaystyle f B 0 00737E 0 9 nbsp Visoko ocineni riziki Redaguvati NASA pidtrimuye avtomatizovanu sistemu dlya ocinki zagrozi vid vidomih navkolozemnih ob yektiv protyagom nastupnih 100 rokiv yaka stvoryuye postijno onovlyuvanu tablicyu riziku Sentri Usi abo majzhe vsi ob yekti nayavni v tablici v bud yakij moment chasu najimovirnishe zgodom z neyi vipadut koli bilsha kilkist sposterezhen dozvolit zmenshiti neviznachenist yihnih orbit 57 U berezni 2002 roku 163132 2002 CU11 stav pershim asteroyidom iz timchasovo dodatnim rejtingom za Turinskoyu shkaloyu z jmovirnistyu zitknennya u 2049 roci priblizno 1 z 9300 58 Dodatkovi sposterezhennya zveli peredbachuvanij rizik do nulya i asteroyid bulo vidaleno z tablici rizikiv Sentri u kvitni 2002 roku 59 Asteroyid 1950 DA kilometrovgo rozmiru vtrachenij pislya 17 dniv sposterezhen u 1950 roci i povtorno vidkritij 31 grudnya 2000 roku stav pershim ob yektom yakij u kvitni 2002 roku otrimav dodatnij rejting 0 17 za shkaloyu Palermo z jmovirnistyu zitknennya 1 300 60 61 Pislya utochnennya orbiti jmovirnist zitknennya zmenshilas 62 ale navit u chervni 2022 roku 1950 DA vse she buv odnim iz najvishih ob yektiv u tablici Sentri z jmovirnistyu zitknennya 1 34000 i vidpovidnim znachennyam za shkaloyu Palermo 2 05 24 grudnya 2004 roku 370 metrovij asteroyid 99942 Apofis na toj chas vidomij lishe pid timchasovim poznachennyam 2004 MN4 otrimav 4 bali za Turinskoyu shkaloyu sho ye najvishim rejtingom v istoriyi ciyeyi shkali Dostupna na toj chas informaciya vkazuvala na 2 7 vu jmovirnist zitknennya iz Zemleyu v p yatnicyu 13 kvitnya 2029 roku Do 28 grudnya 2004 roku dodatkovi sposterezhennya znachno zmenshili zonu neviznachenosti dlya zblizhennya 2029 roku i vona bilshe ne vklyuchala Zemlyu Rizik zitknennya v 2029 roci vpav do nulya ale mozhlivosti zitknen u nastupni zblizhennya iz Zemleyu vse she ocinyuvalisya yak 1 za Turinskoyu shkaloyu Do serpnya 2006 roku sposterezhennya znizili rizik 2036 do rejtingu 0 za Turinskoyu shkaloyu U 2021 roci Apofis buv vidalenij yz tablici Sentri Proyekti z minimizaciyi zagrozi Redaguvati Pershoyu astronomichnoyu programoyu prisvyachenoyu vidkrittyu navkolozemnih asteroyidiv buv Palomar Planet Crossing Asteroid Survey A mizhdisciplinarna konferenciya 1981 roku v Snoumassi shtat Kolorado stala pershoyu de dokladno obgovoryuvalisya nebezpeka zitknen z asteroyidami neobhidnist specializovanih oglyadiv neba dlya yih poshuku ta metodi zapobigannya mozhlivomu zitknennyu 63 U 1992 roci NASA za doruchennyam Kongresu SShA rozrobilo plani bilsh kompleksnogo doslidzhennya yake otrimalo nazvu kosmichna varta 64 65 Shob zaohotiti mizhnarodni doslidzhennya Mizhnarodnij astronomichnij soyuz 1995 roku organizuvav seminar u Vulkano v Italiyi 64 a rik potomu stvoriv Fond kosmichnoyi varti 66 U 1998 roci Kongres SShA postaviv pered NASA cil do 2008 roku viyaviti 90 navkolozemnih asteroyidiv diametrom ponad 1 km tobto takih sho zagrozhuyut katastrofami globalnogo masshtabu 65 67 Dekilka oglyadiv neba specializuvalis na poshuku navkolozemnih asteroyidiv u mezhah Kosmichnoyi varti zokrema LINEAR Spacewatch NEAT LONEOS Katalinskij oglyad CINEOS Japanese Spaceguard Association ADAS i NEOWISE U rezultati spivvidnoshennya vidomoyi j peredbachuvanoyi zagalnoyi kilkosti navkolozemnih asteroyidiv yz diametrami ponad 1 km zroslo z priblizno 20 u 1998 roci do 65 u 2004 roci 68 80 u 2006 roci 69 ta 93 u 2011 roci Takim chinom pervisna meta Spaceguard bula dosyagnuta iz zapiznennyam lishe na tri roki 70 Stanom na listopad 2021 roku vidomo 891 navkolozemnij assteroyid rozmirom ponad 1 km abo 97 vid priblizno 920 71 U 2005 roci kongres dav NASA nastupne doruchennya do 2020 roku viyaviti 90 navkolozemnih ob yektiv diametrom 140 m abo bilshe 72 Ob yekti takogo rozmiru padayut na Zemlyu priblizno raz na 2000 rokiv Stanom na sichen 2020 roku za ocinkami zagalom bulo znajdeno menshe polovini takih ob yektiv 73 U sichni 2016 roku NASA ogolosilo pro stvorennya Koordinacijnogo ofisu planetnogo zahistu dlya vidstezhennya navkolozemnih ob yektiv diametrom ponad 30 50 m ta koordinaciyi reaguvannya na viyavleni kosmichni zagrozi 74 75 Oglyadovi programi spryamovani na viyavlennya zagroz na bagato rokiv napered sho dast lyudstvu chas pidgotuvatisya do kosmichnoyi misiyi shob vidvernuti zagrozu Proyekt ATLAS navpaki spryamovanij na poshuk asteroyidiv nezadovgo do yih zitknennya iz Zemleyu nadto pizno dlya yih vidhilennya ale vchasno dlya evakuaciyi naselennya ta inshoyi pidgotovki urazhenogo regionu Zemli 76 Inshij proyekt Zwicky Transient Facility yakij doslidzhuye ob yekti sho shvidko zminyuyut svoyu yaskravist 77 takozh viyavlyaye asteroyidi yaki prolitayut poblizu Zemli 78 Doslidniki navkolozemnih ob yektiv takozh vivchayut metodi aktivnogo zapobigannya zagrozi yaksho bude viyavleno sho ob yekt perebuvaye na kursi zitknennya iz Zemleyu 79 Usi zhittyezdatni metodi spryamovani na te shob vidvernuti a ne znishiti zagrozlivij ob yekt tomu sho ulamki zrujnovanogo ob yekta vse odno mozhut sprichiniti masshtabni rujnuvannya 80 Vidhilennya orbiti ob yekta za kilka misyaciv abo rokiv pered prognozovanim zitknennyam takozh potrebuye na poryadki menshe energiyi nizh rujnuvannya ob yekta 80 Chiselnist i klasifikaciya RedaguvatiNavkolozemni ob yekti klasifikuyutsya yak meteoroyidi asteroyidi abo kometi zalezhno vid rozmiru skladu ta orbiti Navkolozemni asteroyidi mozhut buti chlenami simej asteroyidiv a kometi utvoryuyut meteorni potoki yaki mozhut viklikati meteorni doshi Stanom na 4 listopada 2021 roku ta zgidno zi statistikoyu yaku vede CNEOS bulo viyavleno 27 440 navkolozemnih ob yektiv Lishe 117 0 43 z nih ye kometami a 27 323 99 57 ye asteroyidami 2224 z cih navkolozemnih ob yektiv klasifikuyutsya yak potencijno nebezpechni asteroyidi Stanom na listopad 2021 roku ponad 1200 navkolozemnih asteroyidiv pokazani na storinci nebezpeki zitknen Sentri na veb sajti NASA Ponad 1000 iz cih asteroyidiv mayut diametr menshe 50 metriv i zhoden iz cih ob yektiv ne perebuvaye navit u zelenij zoni rejting 1 za Turinskoyu shkaloyu tobto zhoden iz nih ne zaslugovuye uvagi shirokoyi gromadskosti 81 31 travnya 2023 roku NASA povidomilo sho kosmichne agentstvo razom z astronomami vsogo svitu viyavilo ponad 32000 navkolozemnih ob yektiv Tochna yih kilkist sklala 32103 ob yekti z yakih ponad 10000 za ocinkami vchenih mayut diametr ponad 140 metriv Nezvazhayuchi na te sho bulo viyavleno bagato navkolozemnih asteroyidiv NASA ocinyuye sho isnuye she prinajmni 15000 ob yektiv diametrom 140 metriv yaki ochikuyut na vidkrittya Krim togo kosmichne agentstvo stverdzhuye sho lishe za ostanni 30 dniv sim iz cih ob yektiv proletili blizhche do Zemli nizh Misyac sho robit yih nadzvichajno blizkimi ta nebezpechnimi Zaznachena chiselnist navkolozemnih ob yektiv okrim asteroyidiv takozh vklyuchaye inshi ob yekti ta kometi yaki nablizhayutsya do nashoyi planeti NASA takozh povidomlyaye sho narazi viyavleno 852 navkolozemnih asteroyida diametrom bilshe 1 kilometra V cij grupi mozhlivo viyaviti she shonajmenshe 50 sho prizvelo b do togo sho zagalna yih kilkist perevishila b900 odinic Zaznacheni vidomosti ye najsvizhishimi u sviti zaznachayetsya v predstavlenij infografici 82 Razom z tim ne vsi navkolozemni ob yekti stanovlyat nebezpeku dlya nashoyi planeti Astronomi klasifikuyut yak navkolozemnij ob yekt angl NEO ob yekt sho znahoditsya v radiusi 30 miljoniv mil 48 280 320 km vid Zemli 83 Sposterezhni uperedzhennya Redaguvati Osnovna problema z ocinkoyu kilkosti navkolozemnih ob yektiv polyagaye v tomu sho jmovirnist viyavlennya kozhnogo takogo ob yekta zalezhit vid nizki faktoriv rozmiru albedo parametriv orbiti tosho 84 Legshi dlya viyavlennya ob yekti budut neproporcijno dobre predstavleni u sposterezhennyah 85 i ci sposterezhni uperedzhennya neobhidno kompensuvati namagayuchis obchisliti realnu kilkist til u populyaciyi za uperedzhenim spiskom viyavlenih chleniv 84 Prirodno sho z usih navkolozemnih asteroyidiv pershimi buli vidkriti dva najbilshi 433 Eros 17 km u diametri i 1036 Ganimed blizko 35 km 86 Div takozh RedaguvatiZitknennya z kosmichnim tilom Globalna katastrofa Potencijno nebezpechni astronomichni ob 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