
2018 vee. jee. 18

 yeh ack door kii trance-neptunion vastu haye jise soorya seey bahut aage khoja gayaa thaa. yeh pahali baar 10 navambar 2018 koo khagolvidon scott shapered, david tholan aur chaad truzillo dwara door key trance-neptunion vastuon kii khoj key dauran dekhaa gayaa thaa, jinaki kakshaaen gurutvaakarshan seey kaalpanik grah nau seey prabhaavit hoe sakati hain. unhone 17 disambar 2018 koo apani khoj kii ghoshana kii aur soorya seey isaki doori parr jore dene key liye vastu koo "door" upnaam diyaa.
 saur mandal mein abb taka dekhi gaee doosari sabse door kii praakritik vastu haye, usee dall dwara janwari 2018 mein khoji gaee trance-neptunion vastu (132 aeu) key baad. yeh vastu soorya seey dekhi gaee doori parr haye, joe baune grah pluto kii dekhi gaee doori seey teen gunaa adhik haye. yeh ausat roop seey sabse door kii kaksha vaali vastu honey key karib naheen haye, kyonki isaki kakshiya ardh-pramukh aksh kewal lagbhag 81 aeu honey kaa anuman haye. tulanaa key liye, grah aur sambhaavit baune grah 90377 sedna kaa ardh-pramukh aksh lagbhag 500 aeu haye.
avalokan seey pataa chalata haye kii yeh gulabi rung mein dikhaai detaa haye, joe burf seey bharpur satah kaa sanket haye.
khoj.
 khagolvidon scott shapered, david tholan aur chaad truzillo dwara 10 navambar 2018 koo havaai mein mauna key vedhshala mein khoj kii gaee thee. khoj ney door kii trance-neptunion vastuon (tnos) key liye unaki khoj kaa hissa banaaya joe kakshaon key saath gurutvaakarshan seey vichalit hoe sakate hain. khoj dall kaee anya door key tno kii khoj mein shamil thaa, jisamen sednoids aur 541132 lelekunua shamil they. pahali baar 10 navambar 2018 kii raat koo 8.2-meter subaru doorbeen key saath lii gaee dou chhaviyon mein dheere-dheere aage badhane vaali ack mund vastu key roop mein pahachaana gayaa thaa. khoj key samay, vrishabh nakshatr mein sthit thaa, joe 24.6 key bahut hii mund spasht parimaan parr thaa, joe adhikansh doorbinon key liye sabse cumm pataa lagaane yogya parimaan seema key karib thaa.
'akash mein cumm gati aur chamak ney sanket diyaa kii yeh bahut door haye, jisane isaki kaksha aur doori koo baadhit karane key liye atirikt anuvarti tippaniyon koo prerit kiya. duss dinon key avalokan samay key saath laas campanas vedhshala mein shapered dwara disambar 2018 mein vastu koo phir seey dekhaa gayaa thaa. haalaanki, isaki kaksha apane chhote avalokan chaap key kaaran ack mahatvapurna anishchitata key saath bunny rahee. phir bhee, praarambhik kaksha samadhan key saath khoj kii aupchaarik roop seey 17 disambar 2018 koo laghu grah kendra dwara jaari ack chhote grah electronic paripatra mein ghoshana kii gaee thee.
khoj kii ghoshana key baad seey, laas campanas aur mauna key vedhshaalaaon mein shapered dwara samay-samay parr dekhaa gayaa haye. navambar 2019 aur janwari 2020 mein roque dee loss masachos vedhshala mein atirikt avalokan bhee kiye gaye they, joe 16 varshon (5,900 dinn) key avalokan chaap key saath paanch seey adhik virodhon key liye dekhe gaye hain. 11 march 2015 aur 16 janwari 2017 koo sero tololo vedhshala key dark energy cameray dwara lii gaee chhaviyon mein kaee poorv-avalokan kii pehchaan kii gaee haye, saath hii kanada-france-havaai doorbeen aur subaru doorbeen dwara kramshah navambar 2003 aur sitambar 2005 mein lii gaee chhaviyon kii pehchaan kii gaee haye.
namkaran.
kii khoj kii ghoshana parr, khojkartaon ney soorya seey isake door key sthaan key liye vastu koo "door" upnaam diyaa, aur vishesh roop seey kyonki yeh usa samay dekhaa gayaa sabse door kaa gyaat sthaan thaa. usee dinn, laghu grah kendra dwara vastu koo aupchaarik roop seey asthaayi padnam diyaa gayaa thaa. asthaayi padnam vastu kii khoj kii tarikh koo ingit kartaa haye, jisamen pahala akshar navambar key pahale aadhe kaa pratinidhitva kartaa haye aur baad key akshar aur sankhyaaen ingit karati hain kii yeh usa aadhe maheene key dauran khoji gaee 457 veen vastu haye. laghu avalokan chaap aur kakshiya anishchitata key kaaran laghu grah kendra dwara vastu koo abhee taka ack aadhikarik laghu grah sankhya naheen dee gaee haye. cumm seey cumm chaar seey adhik virodhon key liye dekhe jaane key baad ack chhoti grah sankhya praapt honey kii ummeed haye, jisamen kaee saal lagenge. ack baar jaba yeh ack chhoti grah sankhya praapt kartaa haye, tou vastu apane khojkartaon dwara namkaran key liye paatr hogi.
kaksha aur vargeekaran.
 yeh soorya seey doosari sabse door dekhi gaee saur mandal kii vastu haye aur 100 khagoliya ikaaiyon (aeye. yuu.) seey parey khoj kii gaee pahali vastu haye, joe avalokan kii gaee doori mein baune grah (96 aeye. yuu.) koo peechhe chhodati haye. 'soorya seey pluto kii doori soorya seey pluto kii dekhi gaee doori seey teen gunaa adhik haye (2018 key dauran 34 auo). tulanaa key liye, 2021 mein "pioneer 10" aur "viager 2" antariksh jaanch kii doori kramshah lagbhag 128 aeu aur 126 aeu thee. isaki nammatra kii doori parr, heliopause key karib maanaa jaataa haye, vaha seema jahan soorya kii saur havaa koo antartarkiya madhyam dwara lagbhag 120 aeu parr rokaa jaataa haye. naee kaksha nirdhaaran ingit kartaa haye kii yeh vastu vartamaan mein affelian key bahut karib haye, joe ise 2067 key madhya mein pahunchana chaahiye, aur yeh kii yeh bikhare hue disk kaa ack sadasya haye.
10 navambar 2018 koo khoj key samay, soorya seey soorya kii doori 123.4 au thee, aur taba seey soorya seey 0.2au aage badh gaee haye. jaise-jaise yeh affelian key karib aaa rhaa haye, soorya seey 0.06 aeu prati varsh kii darr seey cumm hoe rhaa haye, yaa. farwari 2019 taka gyaat sabse door kaa tii. aine. oh. thaa, jaba shapered key netritva mein usee dall dwara lagbhag 132 aeye. yuu. parr (upnaam "farforout") kii khoj kii gaee thee. jabaki aur sabse door kii saur pranali kii vastuon mein seey ack haye, kuchh nikat-paravalayik dhumketu soorya seey bahut aage hain. udaaharan key liye, seasure kaa dhumketu (see/- 43 key1) soorya seey 800 aeu seey adhik haye jabaki dhumketu donati (see/1858 ell1) soorya seey 145 aeu seey adhik haye.
'soorya seey isaki ausat kakshiya doori lagbhag 81 aeu haye, joe ack poorna kaksha koo puuraa karane mein lagbhag 738 saal letee haye. lagbhag 0.53 kii kakshiya vikendriyata key saath, yeh ack atyadhik lambi kaksha kaa anusaran kartaa haye, joe perihelian parr 38.3 aeu seey affelian parr 125.0 aeu taka kii doori mein bhinn hotaa haye. isaki kaksha lagbhag 24.3 degree seey grahansheel tala kii or jhuki hui haye, jisamen iska appellion grahansheel key neeche unmukh haye. perihelian parr, ise paar kiye binaa naptune kii kaksha key karib pahunchata haye, jisaki nyuntam kaksha pratichhedan doori lagbhag 8 aeu hoti haye. kyonki naptune nikatata mein pahunchata haye, isaki kaksha sambhavatah naptune dwara vikshipt aur bikhare hue haye; iss prakaar, yeh bikhare hue disk vastuon kii shreni mein aataa haye. antim baar 17veen shatabdi key anta mein parigh paarit kiya gayaa.
jabaki yeh sabse door dekhi jaane vaali vastuon mein seey ack haye, isamen sabse badaa kakshiya ardh-pramukh aksh naheen haye. tulanaa key liye, grah 90377 sedna kaa ardh-pramukh aksh lagbhag 500 aeu haye. ack charam mamle mein, bikhare hue disk object kaa ardh-pramukh aksh 1,400 aeu key aspas hotaa haye, halanki soorya seey isaki doori lagbhag 64 aeu haye, joe usa varsh soorya seey lagbhag aadhi doori haye.
 akash key ack vishesh kshetra mein isaki khoj kii gaee thee jahan anya charam tii. aine. oh. paae gaye hain, yeh sujhaav dete hue kii isaki kaksha charam tii. aine. oh. key samaan hoe sakati haye, joe vishisht roop seey door aur atyadhik lambi kakshaaen hain joe kaalpanik grah nau key gurutvaakarshan prabhaav key parinamswarup hoe sakati hain. 'isaki nammatra kii kaksha sedna key saath sanrekhit naheen prateet hoti haye; isaki kaksha key prati-kendra kaa deshantar sedna kii kaksha seey lagbhag 193 degree kii doori parr haye.
shaaririk visheshataaen.
iska aakar aparimit haye, halanki yeh apani aantarik chamak yaa poorna parimaan key aadhar parr ack sambhaavit bauna grah honey key liye paryaapt badaa haye. isaki spasht chamak aur badee doori key aadhar parr, iska poorna parimaan 3.4-4.5 kii seema mein honey kaa anuman haye. chhote grah kendra key anusaar, yeh nauvin aantarik roop seey sabse chamkili bikhare hue disk vastu haye.
isake albedo (paravartansheelta) koo naa tou maapa gayaa haye aur naa hii seemit kiya gayaa haye, iss prakaar isake vyaas kii ganana nishchitata key saath naheen kii jaa sakati haye. yeh maanate hue kii iska albedo 0.10-0.25 kii seema key bheetar haye, iska vyaas aspas honah chaahiye. iss aakar kii seema koo itna badaa maanaa jaataa haye kii shareer ack golakar aakar mein gir sakata haye, aur iss prakaar ack bauna grah hoe sakata haye. khagolshastri michael braun koo ack bauna grah honey kii atyadhik sambhavana haye, joe 0.12 key albido seey ganana kiye gaye apane aakar key anuman aur 3.9 key poorna parimaan key aadhar parr haye. jaba taka kii isaki sanrachana mukhya roop seey chattani naheen haye, taba taka braun ise bahut sambhavana maanata haye kii usane aatm-gurutvaakarshan key madhyam seey ack golakar aakar praapt kiya haye. khagolshastri gonzalo tancredy kaa anuman haye kii ack shareer key liye jalsthaitik santulan seey gujarane key liye nyuntam vyaas kramshah aspas aur mukhya roop seey barfili aur chattani sanrachanaon key liye haye. yadi isaki sanrachana poorv mamle key samaan haye, tou vastu koo tancredy key mandand key tahat ack bauna grah maanaa jaayega. 
magellan-bedd doorbeen key saath avalokan seey pataa chalata haye kii vastu gulabi rung kii haye. gulabi rung kaa shreya aam taur parr isaki satah parr burf kii upasthiti koo diyaa jaataa haye, kyonki anya burf seey bharpur tii. aine. oh. ack samaan rung pradarshit karate hain. isake rung key alawa, isaki satah aur satah kii sanrachana koo abhee taka vistaar seey naheen maapa gayaa haye aur isake liye aage key avalokan kii aavashyakta hogi.

