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U Vikipediyi ye statti pro inshi znachennya cogo termina Neptun Neptu n planeta Sonyachnoyi sistemi vosma za viddalenistyu vid Soncya Vona chetverta za rozmirom u Sonyachnij sistemi tretya za masoyu i nalezhit do planet gigantiv Yiyi orbita peretinayetsya z orbitoyu Plutona v deyakih miscyah Takozh orbitu Neptuna peretinaye kometa Galleya Masa Neptuna u 17 2 razi a diametr ekvatora u 3 9 razi bilshij za zemnij Planeta nazvana na chest rimskogo boga moriv Jogo astronomichnij simvol stilizovana versiya trizubcya Neptuna Neptun Neptun sfotografovanij Voyadzherom 2 z Velikoyu temnoyu plyamoyu livoruch i Maloyu temnoyu plyamoyu pravoruch unizu Bili hmari skladayutsya z metanovogo lodu Vidkrittya 1 Vidkrivach Dzhon Kauch Adams Urben Lever ye Jogann Gotfrid GalleMisce vidkrittya Kembridzh Parizh BerlinData vidkrittya 24 veresnya 1846Metod vidkrittya Matematichnij rozrahunokNazvana na chest NeptunOrbitalni harakteristikiVelika pivvis 4 503 443 661 kmPerigelij 4 452 940 833Afelij 4 553 946 490Ekscentrisitet 0 011214269Orbitalnij period 164 78 roki 60190 dniv 89666 neptunianskih dniv Sinodichnij period 367 49 dnivSerednya orbitalna shvidkist 5 43 km sekSerednya anomaliya 267 767281 Nahil orbiti 1 767975 6 43 vidnosno sonyachnogo ekvatoraSuputniki 14 2 Fizichni harakteristikiEkvatorialnij radius 24 764 15 km3 883 ZemliPolyarnij radius 24 341 30 km3 829 ZemliSplyusnutist 0 0171 0 0013Plosha poverhni 7 6408 109 km 14 98 ZemliOb yem 6 254 1013 km 57 74 ZemliMasa 1 0243 1026 kg17 147 ZemliSerednya gustina 1 638 g sm Priskorennya vilnogo padinnya na poverhni 11 15 m s 1 14 gDruga kosmichna shvidkist 23 5 km cPeriod obertannya 16 god 6 hv 36 sEkvatorialna shvidkist obertannya 2 68 km sNahil osi 28 32 Pryame pidnesennya pivnichnogo polyusa 19g 57h 20s 3 299 3 Shilennya pivnichnogo polyusa 42 950 3 Albedo 0 41Temp poverhni min ser maks tisk 1 bar 72 K 4 tisk 0 1 bar 55 K 4 Vidima zoryana velichina vid 8 02 do 7 78Atmosfera 5 Sklad 80 3 2 voden H2 19 3 2 gelij1 5 0 5 metan 0 019 Dejterid vodnyu HD 0 00015 etan Neptun u VikishovishiNeptun bulo vidkrito 23 veresnya 1846 roku i vin stav pershoyu planetoyu viyavlenoyu zavdyaki matematichnim rozrahunkam Pripushennya pro nayavnist planeti buli pov yazani z neperedbachenimi zminami v orbiti Urana gravitacijni sili yakoyi mogli prizvesti do poyavi cih vidhilen Zgodom Neptun bulo znajdeno nepodalik rozrahovanogo roztashuvannya Nezabarom bulo vidkrito i jogo suputnik Triton prote inshi 14 suputnikiv yaki vidomi zaraz buli vidkriti lishe u XX stolitti Povz Neptun prolitav tilki odin kosmichnij aparat Voyadzher 2 25 serpnya 1989 roku Neptun za svoyim skladom blizkij do Urana a obidvi ci planeti vidriznyayutsya za skladom vid inshih planet gigantiv Yupitera ta Saturna Inkoli Uran ta Neptun vidnosyat do okremoyi kategoriyi krizhanih gigantiv Atmosfera Neptuna podibno do atmosferi Yupitera ta Saturna skladayetsya v osnovnomu z vodnyu ta geliyu Slidi metanu v zovnishnih sharah atmosferi ye prichinoyu sinogo zabarvlennya planeti V atmosferi Neptuna bushuyut najsilnishi vitri sered usih planet Sonyachnoyi sistemi Sudyachi zi sposterezhen Voyadzhera 2 shvidkist hmar mozhe dosyagati 600 m s 6 7 Temperatura u verhnih sharah atmosferi Neptuna blizko 220 C U centri planeti temperatura za riznimi ocinkami stanovit priblizno 5100 C sho vidpovidaye temperaturi na poverhni Soncya ta v yadri bilshosti vidomih planet U Neptuna ye slabka ta fragmentovana kilceva sistema mozhlivo viyavlena she v 1960 ti roki ale dostemenno pidtverdzhena lishe Voyadzherom 2 1989 roku 1948 roku na chest vidkrittya planeti nazvano novij himichnij element pid nomerom 93 neptunij 12 lipnya 2011 roku minuv rivno odin neptunianskij rik abo 164 79 zemnih rokiv vid chasu vidkrittya Neptuna 23 veresnya 1846 roku Zmist 1 Istoriya vidkrittya 2 Orbita ta obertannya 2 1 Orbitalni rezonansi 3 Fizichni harakteristiki 4 Formuvannya ta migraciya 5 Himichnij sklad budova umovi na poverhni 5 1 Magnitosfera 6 Atmosfera 6 1 Klimat 6 2 Shtormi 6 3 Vnutrishnye teplo 7 Kilcya Neptuna 8 Suputniki Neptuna 8 1 Triton 8 2 Protej 8 3 Nereyida 9 Sposterezhennya Neptuna 10 Misiyi do Neptuna 10 1 Majbutni misiyi 11 Neptun u kulturi 12 Div takozh 13 Primitki 14 Dzherela 15 PosilannyaIstoriya vidkrittya RedaguvatiDokladnishe Vidkrittya Neptuna Urben Lever yePislya togo yak 1781 roku Vilyam Gershel vidkriv Uran i rozrahuvav parametri jogo orbiti nezabarom viyavilisya anomaliyi v rusi ciyeyi planeti vin to vidstavav vid rozrahovanogo to viperedzhav jogo Orbita Urana ne vidpovidala zakonu Nyutona Ce navelo na dumku pro isnuvannya za Uranom she odniyeyi planeti sho mogla b svoyim gravitacijnim tyazhinnyam vikrivlyuvati trayektoriyu 7 yi planeti 8 1832 roku u zviti Britanskoyi Asociaciyi rozvitku nauki Dzhordzh Eri yakij zgodom stav korolivskim astronomom vidznachav sho za 11 rokiv pomilka v polozhenni Urana dosyagla majzhe piv hvilini dugi Nezabarom pislya opublikuvannya zvitu Eri oderzhav vid Britanskogo astronoma amatora prepodobnogo doktora Haseya list v yakomu visuvalosya pripushennya sho ci anomaliyi obumovleni vplivom poki she nevidkritoyi zauranovoyi planeti Ochevidno ce bulo pershoyu propoziciyeyu shukati planetu Eri ne shvaliv ideyu Haseya i poshuki ne bulo rozpochato A she za rik do cogo talanovitij molodij student Dzh K Adams vidznachiv u svoyih zapisah Na pochatku cogo tizhnya z yavilasya dumka vidrazu zh pislya oderzhannya stupenya vzyatisya za doslidzhennya anomalij ruhu Uranu sho doteper ne poyasneni Treba znajti chi mozhut voni buti obumovleni vplivom nevidkritoyi planeti i yaksho mozhlivo viznachiti hocha b priblizno elementi yiyi orbiti sho mozhe prizvesti do yiyi vidkrittya Adams otrimav mozhlivist vzyatisya do rozv yazannya ciyeyi zadachi lishe za dva roki j do zhovtnya 1843 poperedni obchislennya bulo zakincheno Adams virishiv pokazati yih Eri prote zustritisya z korolivskim astronomom jomu ne vdalosya Adams povernuvsya do Kembridzha zalishivshi dlya Eri rezultati provedenih rozrahunkiv 8 9 Z nezrozumilih prichin Eri vidreaguvav na robotu Adamsa negativno cinoyu chogo viyavilasya vtrata Angliyeyu prioritetu u vidkritti novoyi planeti Nezalezhno vid Adamsa nad problemoyu zauranovoyi planeti pracyuvav u Franciyi inshij vchenij U Zh Lever ye 10 listopada 1845 vin nadav Francuzkij Akademiyi Nauk rezultati svogo teoretichnogo analizu ruhu Uranu zvernuvshi uvagu na rozbizhnosti mizh danimi sposterezhen ta rozrahunkiv Ce mozhna poyasniti vplivom zovnishnogo chinnika sho ya ocinyu v drugomu trakti Taki ocinki buli zdijsneni v pershij polovini 1846 i Lever ye nadav ukazivki de varto shukati novu planetu Otrimavshi drugij trakt Lever ye Eri zvernuv uvagu na zbig rezultativ doslidzhen Adamsa i Lever ye sho stosuyutsya ruhu gipotetichnoyi planeti yaka zburyuye trayektoriyu Uranu i navit pidkresliv ce na specialnomu zasidanni Radi inspektoriv Grinvicha Ale yak i ranishe vin ne pospishav pochinati poshuki i stav klopotatisya pro nih lishe v lipni 1846 r zrozumivshi yake oburennya mozhe viklikati zgodom jogo pasivnist 10 11 Tim chasom 31 serpnya 1846 roku Lever ye zakinchiv she odne doslidzhennya u yakomu bulo otrimano ostatochnu sistemu elementiv orbiti nevidomoyi planeti ta zaznachene yiyi misce na nebi Obchislennya jogo bazuvalisya na rezultatah sposterezhen Yupitera Saturna i vlasne Urana Ale u Franciyi yak i v Angliyi astronomi vse she ne stavali do poshukiv i 18 veresnya Lever ye zvernuvsya do Joganna Galle asistenta Berlinskoyi observatoriyi yakij 23 veresnya razom zi studentom d Arestom rozpochav poshuki U pershij zhe vechir planetu bulo viyavleno vona perebuvala zovsim blizko vid vkazanogo miscya 12 Zvistka pro vidkrittya planeti na kinchiku pera stala yaskravim triumfom nebesnoyi mehaniki j nezabarom obletila ves naukovij svit Za staloyu tradiciyeyu planeta oderzhala nazvu Neptun na chest antichnogo boga Blizko roku mizh Franciyeyu ta Angliyeyu jshla borotba za prioritet vidkrittya do yakoyi yak ce chasto buvaye sami geroyi bezposerednogo vidnoshennya ne mali Zokrema mizh Adamsom i Lever ye vstanovilosya povne porozuminnya i voni zalishalisya druzyami do kincya zhittya Porivnyannya rozmiriv Neptuna ta ZemliOrbita ta obertannya Redaguvati Orbita Neptuna Za odin povnij obert Neptuna navkolo Soncya nasha planeta robit 164 79 obertiv Neptun ruhayetsya navkolo Soncya eliptichnoyu blizkoyu do krugovoyi orbitoyu ekscentrisitet 0 009 Jogo serednya vidstan vid Soncya u 30 raziv bilsha nizh u Zemli i stanovit priblizno 4 5 mlrd km v serednomu 30 1 astronomichnih odinic a o perigelij 29 81 a o apogelij 30 33 a o 13 Ce znachit sho svitlo vid Soncya do Neptuna ide trohi bilshe nizh 4 godini Trivalist neptunianskogo roku tobto chas odnogo povnogo obertu navkolo Soncya 164 8 zemnih rokiv V 2011 roci Neptun vpershe zrobiv povnij obert navkolo Soncya z momentu jogo vidkrittya v 1846 roci 14 Osovij nahil Neptuna 28 32 15 sho blizko do nahilu osi Zemli 23 44 ta Marsa 25 19 Vnaslidok cogo planeta vidchuvaye shozhi sezonni zmini Cherez dovgij orbitalnij period Neptuna sezoni trivayut blizko soroka rokiv kozhnij 16 Nahil eliptichnoyi ploshini obertannya Neptuna vidnosno ploshini ekliptiki dorivnyuye 1 77 Vlasne obertannya nastilki shvidke sho doba na Neptuni trivaye vsogo 16 godin Oskilki Neptun ne maye tverdoyi poverhni jogo atmosferi vlastive diferencialne obertannya Shiroka ekvatorialna zona obertayetsya z periodom priblizno 18 godin sho povilnishe nizh 16 1 godinne obertannya magnitnogo polya planeti Na protivagu ekvatoru polyarni oblasti roblyat obert za 12 godin Sered usih planet Sonyachnoyi sistemi takij vid obertannya najbilsh yaskravo virazhenij same u Neptuna 17 Ce prizvodit do silnogo shirotnogo zrushennya vitriv 18 Orbitalni rezonansi Redaguvati Dokladnishe Rezonansni transneptunovi ob yektiDiv takozh Poyas Kojpera Neptun maye velikij vpliv na velmi viddalenij vid nogo poyas Kojpera Poyas Kojpera kilce z krizhanih malih planet podibne poyasu asteroyidiv mizh Marsom i Yupiterom ale nabagato bilsh protyazhne Vin roztashovuyetsya v mezhah vid orbiti Neptuna 30 a o do 55 astronomichnih odinic vid Soncya 19 Gravitacijna sila Neptuna zdijsnyuye najbilsh istotnij vpliv na poyas Kojpera v tomu chisli v plani formuvannya jogo strukturi porivnyanij z vplivom sili tyazhinnya Yupitera na poyas asteroyidiv Za chas isnuvannya Sonyachnoyi sistemi deyaki oblasti poyasa Kojpera buli destabilizovani gravitaciyeyu Neptuna i v strukturi poyasa utvorilisya promizhki Yak priklad mozhna navesti oblast mizh 40 i 42 a o 20 Orbiti ob yektiv yaki mozhut utrimuvatisya v comu poyasi protyagom dosit dovgogo chasu viznachayutsya vikovimi rezonansami z Neptunom Dlya deyakih orbit cej chas mozhna porivnyati z chasom isnuvannya Sonyachnoyi sistemi 21 Ci rezonansi z yavlyayutsya koli period obertannya ob yekta navkolo Soncya spivvidnositsya z periodom obertannya Neptuna yak neveliki naturalni chisla napriklad 1 2 abo 3 4 Takim chinom ob yekti vzayemno stabilizuyut svoyi orbiti Yaksho napriklad ob yekt bude zdijsnyuvati obert navkolo Soncya vdvichi povilnishe Neptuna to vin projde rivno polovinu shlyahu todi yak Neptun povernetsya v svoye pochatkove polozhennya Najshilnishe naselena chastina poyasa Kojpera sho narahovuye ponad 200 vidomih ob yektiv znahoditsya v rezonansi 2 3 z Neptunom 22 Ci ob yekti zdijsnyuyut odin obert kozhni 1 obertu Neptuna i vidomi yak plutino tomu sho sered nih prisutnij odin iz najbilshih ob yektiv poyasa Kojpera Pluton 23 V inshih mensh naselenih oblastyah isnuyut rezonansi 3 4 3 5 4 7 i 2 5 24 Fizichni harakteristiki RedaguvatiNeptun maye masu 1 0243 1026 kg 4 i za ciyeyu harakteristikoyu zajmaye seredinne stanovishe mizh Zemleyu ta gazovimi gigantami Neptun v 17 raziv vazhchij za Zemlyu i v 19 raziv legshij za Yupiter Jogo ekvatorialnij radius dorivnyuye 24 764 km 3 priblizno vchetvero bilshij za zemnij Priskorennya vilnogo padinnya na poverhni ciyeyi planeti na rivni tisku 1 bar v serednomu v 1 14 razi bilshe za zemne sered planet Sonyachnoyi sistemi bilshe maye lishe Yupiter 4 Serednya gustina Neptuna 1660 kg m sho majzhe vtrichi menshe za zemnu Neptun maye magnitne pole napruzhenist yakogo na polyusah priblizno vdvichi bilsha nizh na Zemli Temperatura planeti na visoti iz tiskom sho dorivnyuye zemnomu stanovit blizko 72 K Yadro Neptuna jmovirno skladayetsya iz zaliza nikelyu ta silikativ a model strukturi planeti peredbachaye masu yadro priblizno v 1 2 zemnoyi masi 25 Tisk u centri stanovit 7 Mbar 700 GPa priblizno vdvichi vishe nizh u centri Zemli a temperatura mozhe stanoviti 5400 K 17 26 Neptun yak i Uran vvazhayetsya krizhanim gigantom Ce subklas gazovih gigantiv yaki viriznyayutsya menshimi rozmirami ta bilshoyu koncentraciyeyu letuchih gaziv nizh napriklad na Yupiteri ta Saturni 27 V ekzoplanetologiyi Neptun stav metonimom neptunami nazivayut klas ekzoplanet iz shozhimi na Neptun masami analogichno do togo yak yupiterami nazivayut planeti iz masami blizkimi abo bilshimi za masu Yupitera 28 Formuvannya ta migraciya Redaguvati Simulyaciya zovnishnih planet i poyasa Kojpera a Do togo yak Yupiter i Saturn vstupili v rezonans 2 1 b Rozsiyuvannya ob yektiv poyasa Kojpera v Sonyachnij sistemi pislya zmini orbiti Neptuna c Pislya vikidannya til poyasu Kojpera Yupiterom Dlya formuvannya krizhanih gigantiv Neptuna j Urana viyavilosya vazhko stvoriti tochnu model Suchasni modeli vvazhayut sho gustina rechovini v zovnishnih dilyankah Sonyachnoyi sistemi bula nadto nizkoyu dlya formuvannya takih velikih til tradicijnim metodom akreciyi rechovini na yadro Shob poyasniti evolyuciyu Urana j Neptuna bulo visunuto bagato gipotez Odna z nih vvazhaye sho obidva krizhanih giganti sformuvalisya ne metodom akreciyi a utvorilisya vseredini pochatkovogo protoplanetnogo diska cherez jogo nestabilnist i piznishe yihni atmosferi zdulo viprominyuvannyam masivnoyi zori klasu O abo B 29 Insha koncepciya polyagaye v tomu sho Uran i Neptun sformuvalisya blizko do Soncya de gustina rechovini bula vishoyu i lishe zgodom voni peresunulisya na potochni orbiti 30 Gipoteza peresuvannya Neptuna dozvolyaye poyasniti potochni rezonansi v poyasi Kojpera osoblivo rezonans 2 5 Koli Neptun ruhavsya nazovni vin vzayemodiyav z ob yektami protopoyasa Kojpera stvoryuyuchi novi rezonansi j haotichno zminyuyuchi nayavni orbiti Vvazhayetsya sho ob yekti rozsiyanogo diska opinilisya v potochnomu stanovishi cherez rezonansnu vzayemodiyu stvorenu migraciyeyu Neptuna 31 Zaproponovana 2004 roku komp yuterna model Alessandro Morbidelli z observatoriyi Lazurnogo berega v Nicci pripuskaye sho peresuvannya Neptuna do poyasu Kojpera moglo zumoviti formuvannya rezonansu 1 2 na orbitah Yupitera j Saturna yakij posluzhiv svoyeridnim gravitacijnim rushiyem sho vishtovhnuv Uran i Neptun na vishi orbiti ta zmusiv yih zminiti misce roztashuvannya Vishtovhuvannya ob yektiv iz poyasu Kojpera v rezultati ciyeyi migraciyi mozhe takozh poyasniti piznye vazhke bombarduvannya sho stalosya cherez 600 miljoniv rokiv pislya utvorennya Sonyachnoyi sistemi i poyavu v Yupitera troyanskih asteroyidiv 32 Himichnij sklad budova umovi na poverhni Redaguvati Budova Neptuna 1 Verhnya atmosfera i shar hmar 2 Atmosfera voden gelij metan 3 Mantiya vodyanij amiachnij metanovij lid 4 Kam yane yadro kremnij nikel zalizo Atmosfera Neptuna ce zdebilshogo voden i gelij z nevelikoyu domishkoyu metanu sinij kolir Neptuna ye rezultatom poglinannya cim gazom chervonogo svitla v atmosferi V atmosferi Neptuna mistitsya velika kilkist lodu vodnogo amiachnogo metanovogo Takozh v atmosferi Neptuna ye slidi vuglevodniv i mozhlivo azotu Tovshina atmosferi vid 10 do 20 radiusa poverhni a yiyi masa ne menshe 5 i ne bilshe 10 masi planeti V nizhnih sharah zbilshuyetsya koncentraciya metanu vodyanoyi pari ta amiaku maksimalnij tisk 10 GPa v 100 000 raziv bilshij zemnogo 17 Zagalom Neptun maye himichnij sklad mabut podibnij do Urana rizni letyuchi rechovini voden metan voda amiak ta in yaki mistyat blizko 80 vodnyu i neveliku kilkist geliyu Yak i Uran ta na vidminu vid Yupitera z Saturnom Neptun mozhlivo ne maye chitkogo vnutrishnogo rozsharuvannya Ale najbilsh jmovirno sho u nogo ye nevelike tverde yadro rivne 1 2 masi Zemli 25 Yadro Neptuna yak i Urana skladayetsya zdebilshogo z lodu j kamenyu V atmosferi Neptuna bulo viyavleno yavisha shozhi z zemnimi polyarnimi syajvami Podibno do tipovih gazovih planet Neptun vidomij silnimi buryami j vihorami shvidkimi vitrami sho dmut na obmezhenih smugah poryad z ekvatorom Vitri dmut na Neptuni v zahidnomu napryamku proti napryamu obertannya planeti U nizkih shirotah viter dme paralelno ekvatoru u zvorotnomu napryamku jogo shvidkist stanovit blizko 100 m sek Slid zauvazhiti sho v planet gigantiv shvidkist potokiv i pliniv u yihnih atmosferah zbilshuyetsya z vidstannyu vid Soncya Cya zakonomirnist poki sho ne maye poyasnennya Na znimkah mozhna pobachiti hmari v atmosferi Neptuna Podibno do Yupitera j Saturna Neptun maye vnutrishnye dzherelo tepla vin viprominyuye u 2 61 raza bilshe energiyi nizh oderzhuye vid Soncya 33 Take intensivne infrachervone viprominyuvannya svidchit pro nagrivannya imovirno sprichinene gravitacijnim stisnennyam planeti Magnitosfera Redaguvati Magnitne pole Neptuna yak i pole Urana oriyentovane nezvichajno i mabut stvoryuyetsya techiyeyu providnoyi rechovini mozhlivo vodi roztashovanoyi v serednih sharah planeti vishe yadra 34 35 Magnitna vis nahilena na 47 gradusiv do osi obertannya do togo zh vis simetriyi magnitnogo polya Neptuna ne prohodit cherez centr planeti a vidhilena vid nogo bilsh nizh na piv radiusa sho nagaduye vlastivosti magnitnogo polya navkolo Urana Vidpovidno i napruzhenist polya na poverhni v riznih yiyi miscyah zminyuyetsya vid tretini do potroyenogo znachennya zemnoyi Navit u yakijs odnij tochci poverhni pole takozh minlive yak i polozhennya ta intensivnist dzherela v nadrah planeti Zavdyaki vipadku pri pidloti do Neptuna Voyadzher ruhavsya majzhe tochno v napryamku pivdennogo magnitnogo polyusa planeti sho dalo mozhlivist uchenim zdijsniti nizku unikalnih doslidzhen bagato rezultativ yakih dosi ne pozbavleno tayemnichosti j nezrozumilosti V atmosferi bulo viyavleno yavisha podibni do zemnih polyarnih syajv ta zrobleno pripushennya pro budovu Neptuna Doslidzhuyuchi magnitni yavisha Voyadzheru vdalosya tochno vstanoviti period obertannya Neptuna navkolo svoyeyi osi 16 godin 7 hvilin Atmosfera Redaguvati Hmari na NeptuniAtmosfera Neptuna skladayetsya z vodnyu priblizno 67 geliyu 31 i metanu 2 Na verhnih sharah ce 80 vodnyu i 19 geliyu 17 Krim cih osnovnih skladnikiv vona mistit takozh neznachni domishki rechovin sho ye naslidkom fotolizu metanu acetilen C2H2 diacetilen C4H2 etilen C2H4 j etan C2H6 a takozh chadnij gaz CO i molekulyarnij azot N2 Atmosfernij skladVoden H2 80 3 2 Gelij He 19 3 2 Metan CH4 1 5 0 5 Dejterid vodnyu HD 0 019 Etan C2H6 0 00015 LodiAmiak NH3 Voda H2O Gidrosulfid amoniyu NH4SH Metan CH4 Osnovnij shar hmar roztashovano na rivni tisku blizko 3 atmosfer vin skladayetsya z zamerzlogo sirkovodnyu H2S mozhlivo iz nevelikoyu domishkoyu amiaku NH3 Temperatura v cij oblasti stanovit blizko 100 K 173 C Vishe osnovnogo sharu u holodnij prozorij atmosferi kondensuyutsya ridkisni bili hmari zamerzlogo metanu CH4 Ci hmari pidijmayutsya na visotu 50 150 km i vidkidayut tini na osnovnij hmarnij pokriv yak ce vidno na znimkah Voyadzhera 2 Nizhche pershogo sharu hmar na rivni tisku blizko 20 atmosfer i temperaturi blizko 200 K 73 C roztashovano drugij shar hmar iz gidrosulfidu amoniyu NH4SH She glibshe roztashovano hmari z vodyanogo lodu Zagalom atmosfera Neptuna dilitsya na dva osnovni regioni znizu troposfera de temperatura padaye z visotoyu zverhu stratosfera de temperatura zrostaye z visotoyu U stratosferi takozh prisutni v mizernih kilkostyah monooksid vuglecyu ta sinilna kislota 36 Temperaturnij minimum tropopauza v atmosferi Neptuna stanovit 50 K 223 C i dosyagayetsya za tisku 0 1 atmosferi 37 Na rivni tisku 10 8 10 7 atmosfer za temperaturi 160 K 113 C roztashovana mezopauza oblast postijnoyi temperaturi vishe yakoyi prostyagayetsya termosfera Temperatura termosferi dosyagaye 750 K 476 C 37 Iz dosi nezrozumilih prichin temperatura termosferi planeti ye duzhe visokoyu 38 39 Neptun znahoditsya nadto daleko vid Soncya shob poyasniti take nagrivannya sonyachnim ultrafioletom Kandidatom na mehanizm nagrivannya termosferi ye vzayemodiya ioniv atmosferi z magnitnim polem planeti Inshim kandidatom ye gravihvili iz vnutrishnoyi storoni atmosferi yaki rozsiyuyutsya V termosferi mistitsya nevelika kilkist dioksidu karbonu ta vodi yaki mogli potrabiti tudi iz zovnishnih dzherel takih yak meteoriti ta pilyuka 40 36 Klimat Redaguvati Odna z vidminnostej mizh Neptunom ta Uranom riven meteorologichnoyi aktivnosti Voyadzher 2 sho prolitav poblizu Urana v 1986 roci zafiksuvav ukraj slabku aktivnist atmosferi Na protivagu Uranu Neptun demonstruvav pomitni pogodni zmini pid chas fotografuvannya z Voyadzher 2 v 1989 roci 41 Velika temna plyama vgori Skuter bila trikutna hmarka poseredini 42 i Mala temna plyama vnizu Pogoda na Neptuni harakterizuyetsya nadzvichajno dinamichnoyu sistemoyu shtormiv z vitrami sho dosyagayut majzhe nadzvukovih shvidkostej 43 Maksimalna zareyestrovana shvidkist vitru na Neptuni dosyagala 600 m s sho ye rekordom dlya Sonyachnoyi sistemi 40 U hodi vidstezhennya ruhu postijnih hmar bulo zafiksovano zminu shvidkosti vitru vid 20 m s u shidnomu napryamku do 325 m s na zahidnomu 44 U verhnomu hmarnomu shari shvidkosti vitriv riznyatsya vid 400 m s vzdovzh ekvatora do 250 m s na polyusah 40 Na visokih shirotah napryam vitriv zbigayetsya z napryamkom obertannya planeti a na serednih ta nizkih protilezhnij jomu Vidminnosti v napryamku povitryanih potokiv jmovirno mayut poverhnevij harakter i ne pov yazani z glibinnimi atmosfernimi procesami 37 Vmist v atmosferi metanu etanu ta acetilenu v oblasti ekvatora perevishuye v desyatki ta sotni raziv vmist cih spoluk v oblasti polyusiv Ce sposterezhennya mozhe vvazhatisya svidchennyam na korist isnuvannya apvelinga na ekvatori Neptuna i jogo znizhennya blizhche do polyusiv 37 U 2007 roci bulo vidmicheno sho verhnya troposfera pivdennogo polyusa Neptuna bula na 10 C teplishe nizh insha chastina Neptuna de temperatura v serednomu stanovit 200 C 45 Taka riznicya v temperaturi dostatnya shob metan yakij v inshih oblastyah verhnij chastini atmosferi Neptuna znahoditsya v zamorozhenomu viglyadi na pivdennomu polyusi prosochuvavsya v kosmos Cya garyacha tochka naslidok osovogo nahilu Neptuna pivdennij polyus yakogo vzhe chvert neptunivskogo roku tobto priblizno 40 zemnih rokiv zvernenij do Soncya U miru togo yak Neptun povilno prosuvatimetsya orbitoyu do protilezhnoyi storoni Soncya pivdennij polyus postupovo pide v tin i Neptun pidstavit Soncyu pivnichnij polyus Takim chinom vivilnennya metanu v kosmos peremistitsya z pivdennogo polyusa na pivnichnij 46 Cherez sezonni zmini hmarni smugi v pivdennij pivkuli Neptuna yak sposterigalosya zbilshilisya v rozmiri ta albedo Cya tendenciya bula pomichena she 1980 roku i yak ochikuyetsya trivatime do 2020 z nastannyam na Neptuni novogo sezonu Sezoni zminyuyutsya kozhni 40 rokiv 16 Shtormi Redaguvati Velika temna plyama foto z Voyadzhera 2 1989 roku aparatom NASA Voyadzher 2 bula vidkrita Velika temna plyama stijkij shtorm anticiklon rozmirami 13 000 6600 km 41 sho nagaduvav Veliku chervonu plyamu Yupitera Odnak 2 listopada 1994 roku kosmichnij teleskop Gabbl ne viyaviv jogo na kolishnomu misci Zamist nogo nove shozhe utvorennya bulo viyavleno v pivnichnij pivkuli planeti 47 Skuter ce inshij shtorm viyavlenij pivdennishe Velikoyi temnoyi plyami Jogo nazva naslidok togo sho she za kilka misyaciv do zblizhennya Voyadzhera 2 z Neptunom bulo yasno sho cya grupka hmar peremishalasya nabagato shvidshe za Veliku temnu plyamu 48 Zobrazhennya znyati pid chas zblizhennya dozvolili viyaviti she shvidshi nizh skuter grupi hmar Mala temna plyama drugij za intensivnistyu shtorm sho sposterigavsya pid chas zblizhennya Voyadzhera 2 z planetoyu 1989 roku roztashovana she pivdennishe Spochatku vona zdavalasya povnistyu temnoyu ale pri zblizhenni yaskravij centr Maloyi temnoyi plyami stav pomitnishim sho mozhna vidznachiti na bilshosti chitkih fotografij z visokoyu rozdilnistyu 49 Temni plyami Neptuna yak vvazhayut narodzhuyutsya v troposferi na nizhchih visotah nizh bilsh yaskravi j pomitni hmari 50 Takim chinom voni zdayutsya svoyeridnimi dirami u verhnomu hmarnomu shari Oskilki ci shtormi mayut stijkij harakter ta mozhut isnuvati protyagom dekilkoh misyaciv voni yak vvazhayetsya mayut vihrovu strukturu 18 Chasto zv yazuyutsya z temnimi plyamami bilsh yaskravi postijni hmari metanu yaki formuyutsya v tropopauzi 51 Stalist suputnih hmar pokazuye sho deyaki kolishni temni plyami mozhut prodovzhiti svoye isnuvannya yak ciklon navit pri tomu sho voni vtrachayut temne zabarvlennya Temni plyami mozhut rozsiyatisya yaksho voni ruhayutsya zanadto blizko do ekvatora abo cherez yakijs inshij nevidomij poki sho mehanizm 52 Vnutrishnye teplo Redaguvati Vvazhayetsya sho riznomanitnisha pogoda na Neptuni v porivnyanni z Uranom ye naslidkom vishoyi vnutrishnoyi temperaturi 53 Za cogo Neptun u pivtora razi viddalenishij vid Soncya nizh Uran i otrimuye lishe 40 vid tiyeyi kilkosti sonyachnogo svitla yake otrimuye Uran Poverhnevi zh temperaturi cih dvoh planet priblizno rivni 53 Verhni oblasti troposferi Neptuna dosyagayut velmi nizkoyi temperaturi v 221 4 C Na glibini de tisk dorivnyuye 1 baru temperatura dosyagaye 201 15 C 54 Z glibinoyu temperatura postijno pidvishuyetsya Yak i z Uranom mehanizm nagrivu nevidomij ale nevidpovidnist velika Uran viprominyuye v 1 1 razi bilshe energiyi nizh otrimuye vid Soncya Neptun zhe viprominyuye v 2 61 razi bilshe nizh otrimuye 55 Hocha Neptun najdalsha vid Soncya planeta jogo vnutrishnoyi energiyi viyavlyayetsya dosit shob poroditi najshvidshi vitri v Sonyachnij sistemi Proponuyetsya kilka mozhlivih poyasnen vklyuchayuchi radiogennij nagriv yadrom planeti podibno rozigrivannyu Zemli radioaktivnim kaliyem 40 53 utvorennya z metanu inshih vuglevodniv z podalshim splivannyam vodnyu sho vidilivsya 53 56 a takozh konvekciya v nizhnij chastini atmosferi yaka prizvodit do galmuvannya gravitacijnih hvil nad tropopauzoyu 57 58 Kilcya Neptuna Redaguvati Kilcya NeptunaDokladnishe Kilcya NeptunaNeptun takozh maye kilcya dva shirokih i dva vuzkih Yih bulo vidkrito pid chas zatemnennya Neptunom odniyeyi z zirok 1981 roku Sposterezhennya z Zemli dozvolili pobachiti tilki slabki dugi zamist povnih kilec 59 ale fotografiyi Voyadzhera 2 v serpni 1989 roku pokazali yih povnistyu Odne z kilec maye skladnu vikrivlenu strukturu Podibno Uranovim i Yupiterovim kilcya Neptuna duzhe temni j budova yih nevidoma Mozhlivo kilcya skladayutsya z lodu pokritogo silikatami chi vuglecevmisnoyu rechovinoyu sho nadaye yim chervonuvatij vidtinok 60 Yim dali nastupni nazvi zovnishnye Adams yake mistit tri dugi sho vidilyayutsya yaki ohrestili Svobodoyu Rivnistyu i Braterstvom potim bezimenne kilce sho zbigayetsya z orbitoyu suputnika Neptuna Galateyi slidom Lever ye chiyi zovnishni rozshirennya nazvani Lassell i Arago i nareshti slabke ale shiroke kilce Galle Yak vidno nazvi kilec uvikovichili tih hto brav uchast u vidkritti Neptuna Suputniki Neptuna RedaguvatiDokladnishe Suputniki NeptunaNeptun maye 14 suputnikiv sho nazvani imenami morskih bozhestv u greckij mifologiyi 4 61 Odnomu z nih nalezhit bilsh yak 99 5 yihnoyi zagalnoyi masi 62 i lishe vin masivnij nastilki shob stati sferoyidalnim Ce Triton vidkritij Vilyamom Lasselom vsogo cherez 17 dniv pislya vidkrittya Neptuna o Malta 1846 Sered inshih cikavih misyaciv Neptuna Protej primitnij tim sho ce tilo maksimalno mozhlivogo rozmiru z jogo gustinoyu yake ne piddalos sferitizaciyi pid diyeyu gravitaciyi 63 Informaciyu pro suputniki navedeno u tablici Suputniki Neptuna dani pro vidkrittya Nazva ukr Nazva lat Poperednye poznachennya Data vidkrittya Misce vidkrittya Vidkrivachi0000001I Triton Triton 10 01 1846 Liverpul V Lassell0000002II Nereyida Nereid 1 05 1949 Fort Dejvis Dzh P Kojper0000003III Nayada Naiad S 1989 N 6 18 09 1989 KA Voyadzher 2 R Terril0000004IV Talasa Thalassa S 1989 N 5 18 09 1989 KA Voyadzher 2 R Terril0000005V Despina Despina S 1989 N 3 28 07 1989 KA Voyadzher 2 S Sinnot0000006VI Galateya Galathea S 1989 N 4 28 07 1989 KA Voyadzher 2 S Sinnot0000007VII Larisa Larissa S 1981 N 1S 1989 N 2 24 05 198128 07 1989 TusonKA Voyadzher 2 G Rejtsema V Gabbard L Lebofski D Dzh Tolen S Sinnot0000008VIII Protej Protheus S 1989 N 1 16 06 1989 KA Voyadzher 2 S Sinnot0000009IX Galimeda Halimede S 2002 N 1 14 08 2002 La Serena M Holman Dzh Kavelars T Grav V Frezer D Milisavlyevich0000010X Psamafa Psamathe S 2003 N 1 29 08 2003 o Mauna Kea S Sheppard Dzh Klina D Dzhuyitt0000011XI Sao Sao S 2002 N 2 14 08 2002 La Serena M Holman Dzh Kavelars T Grav V Frezer D Milisavlyevich0000012XII Laomedeya Laomedeia S 2002 N 3 13 08 2002 La Serena M Holman Dzh Kavelars T Grav V Frezer D Milisavlyevich0000013XIII Neso Neso S 2002 N 4 14 08 2002 La Serena M Holman Dzh Kavelars T Grav V Frezer D Milisavlyevich0000014XIV Gipokamp Hippocamp S 2004 N 1 15 07 2013 KT Gabbl M R Shouolter I de Pater T Grav Dzh Dzh Lissoer R S FrenchTriton Redaguvati Dokladnishe Triton suputnik Triton maye 14 zoryanu velichinu i ye najbilshim sered suputnikiv Neptuna Vidstan vid Neptuna 394700 km siderichnij period obertannya 5 dib 21 god 3 hv diametr priblizno 2707 km sho na 769 km menshe diametra Misyacya hocha masa jogo u 3 5 razi mensha Ce yedinij suputnik Sonyachnoyi sistemi yakij obertayetsya navkolo svoyeyi planeti v protilezhnij bik vid obertannya samoyi planeti navkolo svoyeyi osi Ye versiyi sho Triton zahoplena kolis Neptunom samostijna planeta 64 Maye velike albedo 60 90 albedo Misyacya 12 bo zdebilshogo skladayetsya z vodyanogo lodu U Tritona bulo viyavleno neznachnu gazovu obolonku tisk yakoyi na poverhni v 70 000 raziv menshe zemnogo atmosfernogo tisku Pohodzhennya ciyeyi atmosferi sho mala b davno rozsiyatisya poyasnyuyut chastimi viverzhennyami na suputniku sho popovnyuyut yiyi gazami Koli bulo otrimano znimki Tritona na jogo krizhanij poverhni spravdi pomitili gejzeropodibni viverzhennya azotu i temnih chastok pilu riznogo rozmiru Vse ce rozsiyuyetsya v navkolishnomu prostori Ye pripushennya sho pislya zahoplennya Neptunom suputnik bulo rozigrito priplivnimi silami i vin buv navit ridkim pershij milyard rokiv pislya zahoplennya Mozhlivo u nadrah svoyih vin yak i ranishe zberig cej agregatnij stan Poverhnya Tritona nagaduye polyarni shapki Galileyevih suputnikiv Yupitera Yevropi Ganimeda Io a takozh Arielya suputnika Urana Protej Redaguvati Dokladnishe Protej suputnik Drugij za velichinoyu ta najbilshij vnutrishnij suputnik Neptuna 65 Vin nazvanij na chest Proteya morskogo boga sho zminyuye formu v greckij mifologiyi 66 Protej obertayetsya navkolo Neptuna majzhe po ekvatorialnij orbiti na vidstani blizko 4 75 ekvatorialnogo radiusa planeti Oskilki vin znahoditsya duzhe blizko do Neptuna jogo duzhe vazhko sposterigati z Zemli Suputnik buv vidkritij Voyadzherom 2 Nereyida Redaguvati Dokladnishe Nereyida suputnik Tretij za rozmirami suputnik Neptuna Serednya vidstan vid Neptuna 6 2 mln km diametr blizko 340 km Nereyida najviddalenishij suputnik Neptuna sered vidomih Vona robit odin obert navkolo planeti za 360 dniv Orbita Nereyidi duzhe vityagnuta yiyi ekscentrisitet stanovit 0 75 odin z najbilshih sered vsih suputnikiv v Sonyachnij sistemi Cherez ce najbilsha vidstan vid suputnika do planeti perevishuye najmenshu v sim raziv vidnoshennya apocentra do pericentra 7 037 Nereyidu bulo vidkrito 1949 roku Dzherardom Kojperom SShA Sposterezhennya Neptuna RedaguvatiNeptun nevidimij dlya neozbroyenogo oka oskilki jogo vidima zoryana velichina kolivayetsya vid 7 7 do 8 0 4 67 sho oznachaye sho vin tmyanishij vid Galileyevih suputnikiv karlikovoyi planeti Cerera ta asteroyidiv 4 Vesta 2 Pallada 7 Irida 3 Yunona i 6 Geba 68 Planetu mozhna pobachiti lishe za dopomogoyu 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