Vesta ndi asteroid yooneka kwa maso

Vesta ndi asteroid, mwazinthu zambiri chidwi. Ichi ndi chinthu chofanana chomwe chikhoza kuwonedwa ndi maso. Misa ndi kukula kwake, Kumadzulo kuli wapamwamba kuposa ena ambiri odziwika bwino a asteroids mu malo pakati pa maulendo a Jupiter ndi Mars. Malingana ndi magawo ake, ndizowonjezereka kwambiri ndi mapulaneti. Ali mumtanda waukulu wa asteroids, Vesta amatanthauza matupi opangidwa mozungulira nthawi yomweyo monga Dziko lapansi, motero, akhoza kudziwa zambiri za mapeto a dongosolo lathu.

Kupeza

Vesta ndi asteroid yomwe inapezeka pakufufuza dziko pakati pa mapulaneti a Mars ndi Jupiter. Malingana ndi chiphunzitsochi, kugawana kwa mayendedwe mumlengalenga pozungulira dzuwa kumamvera nthawi zina. Mapulaneti onse omwe amadziwika kumayambiriro kwa zaka za m'ma 1800 amatsatira chiphunzitso ichi. Kupatulapo kunali Jupiter ndi Mars okha. Pakati pawo panafunika kubisala dziko losadziwika. Pamene akufufuza, zinthu zambiri za Main Asteroid Belt zinapezeka.

Westu anapeza mu 1807, Henry Wilhelm Olbers. Wasayansi winanso, Karl Gauss, anamutcha dzina la mulungu wamkazi wachiroma wakale. Dzinali linakhazikitsidwa ndipo likugwiritsidwanso ntchito.

Zosankha

Pambuyo pa Ceres adatengedwa kupita ku mapulaneti achilendo , Vesta muyeso yake ndi yachiwiri pakati pa asteroids pambuyo pa Pallas. Zigawo zake ndi 578 × 560 × 458 km. Maonekedwe ofanana a mawonekedwe satilola kuti tifotokoze Kumadzulo kwa mapulaneti achilendo. Kulemera kwake (2.59 * 10 ²⁰ kg), kuli patsogolo pa Pallas, ndiko kuti, mu lamba waukulu wa asteroids, Ceres yekhayo ndi amene amaposa izi.

Kodi asteroid ili ndi chikhalidwe?

Asteroids sizimangokhala mu kalasi yosiyana ya matupi a zakuthambo. Kuchokera pa mapulaneti, iwo amasiyana mosiyanasiyana pa magawo: kukula, mawonekedwe, misa, ndi zina zotero. Zizindikiro zomwe zimagwirizana ndi asteroid siziloleza kuti zikhale ndi chipolopolo cha gasi. Choncho, yankho la funso lakuti "kodi asteroid ili ndi chikhalidwe" ndizolakwika. Chosowa kwambiri gasi shell iripo pa Ceres. Matupi ena mu Main Belt sangathe kudzitama ngati Vesta asteroid. Ali ndi chilengedwe cha Padziko lapansi, Venus, Mars, chimphona cha gasi ndi ma satellites ena. The asteroids ndizochepa kwambiri pa izi.

Kodi mungayang'ane bwanji Vesta asteroid?

Vesta chifukwa cha kuwala kungaoneke ndi maso. Ngakhale kuti ndi otsika poyerekeza ndi Ceres ndi Pallas, koma amadziwika ndi reflectivity. Ma asteroids ena ochokera kudziko popanda zipangizo zamtengo wapatali sangaoneke.

Nthaŵi yabwino yopeza asteroid kumwamba ndi masiku a nkhondo, pamene ikuyandikira mtunda waung'ono ku Dziko lapansi. Panthawiyi, kuwala kwake kumawonjezeka kufika 5.1 m (mtengo wochepa wa parameter uwu ndi 8.5 m). Nthawi yomaliza kukangana kumeneku kunachitika mu April 2014.

Vesta akuyandikira mtunda wautali ku dziko lathu lonse zaka 3-4. Popanda telescope, mungathe kuziona pokhapokha ngati zikuoneka bwino. Komabe, sizimasiyana ndi nyenyezi zamba.

Kusuntha

Ulendo wa Vesta uli m'katikati mwa Main Belt of Asteroids. Maonekedwe ake amangotambasula pang'ono - ndi pafupifupi mzere wokongola. Orbit imakhala ndi malo otsetsereka kwa ndege ya kadamsana. Vesta amapanga kusintha kwina kuzungulira Dzuŵa kwa zaka 3.6. Pachifukwa ichi, asteroid siyimphana ndi mapulaneti a dziko lapansili pakuyenda kwake.

Mwachindunji interplanetary station Dawn

Mu 2011, mu July, Vesta anadutsa pamtunda wa mtunda wochepa wa dziko lapansi. Nthawi imeneyi idagwiritsidwa ntchito pofufuza mwatsatanetsatane za asteroid. Kubwerera mu 2007, Vannes anatumizidwa ku AMC Dawn. Ntchito ya chipangizochi ndi kuphunzira za asteroid, komanso mapulaneti a Ceres.

Kuzungulira kozungulira kwa Vesta Dawn kunatulutsidwa pa July 16, 2011. Pakafika pa 12 December, adakwanitsa kukwera pamwamba pa asteroid. Zina mwa ntchito za chipangizochi ndizoyeso ya masewera, mphamvu ya neutroni ndi gamma quanta, yomwe imawonekera pamene kuwala kwa cosmic kugwera pa Vesta asteroid. Chithunzi cha chinthucho chinayamba kufika pa Dziko lapansi pa December 13.

AMC Dawn anasiya asteroid pa September 5, 2012 ndipo anapita ku Ceres. Kwa lero (December 2015) chipangizocho chikupitirizabe kugwira ntchito pamtunda wa dziko lapansi.

Kuwona

Vesta ndi asteroid, "mosayang'anitsitsa" ndi Hubble telescope. Kafukufukuyu anachitika mu zaka za m'ma 90 zapitazo. "Hubble" adaphunzira pamwamba pa asteroid. Mfundo yodabwitsa kwambiri yokhudza mpumuloyi inali chimphona chachikulu, chomwe chinadzatchedwa Rejasilvia. Njirayi, yomwe imangotsala pang'ono kugwedezeka, imakhala ndi makilomita 460 ndi kuya kwa 13 km. Osayansi sangathe kuyankha funso la momwe Vesta angapulumutsidwire.

AMC Dawn adaphunziranso za chigwacho. Malingana ndi maganizo a asayansi, Rejasilvia anapangidwa zaka 1 biliyoni zapitazo. Gombe lachigwacho limabisala pang'onopang'ono njira yomweyi, yotchedwa chipululu cha Veneneya. Pakatikati mwa Reyasylvia ndi phiri lalikulu makilomita 22 ndi 180 kilomita. Malingana ndi magawo ake, ndilo patsogolo pa chimphona chachikulu cha Olympus ku Mars, chomwe poyamba chinkaonedwa kuti ndi phiri lodziŵika bwino kwambiri pa dzuwa.

Asayansi amasonyeza kuti mankhwala omwe amachotsedwa panthawi yomwe amachititsa kuti athandizidwe athandizidwe ngati zinthu zakutuluka kwa zinthu za banja la Vesta ndi class A asteroids.

Ochita kafukufuku akuyang'ana zinthu zofanana, monga momwe angadziwire zambiri za nthawi imene dzuŵa linangokhalapo. Vesta ndi asteroid, yofanana mofanana ndi mapulaneti apadziko lapansi. Mwinamwake, phunziro lake lidzawuza akatswiri ambiri a zakuthambo za kutalika kwa gawo la Galaxy yathu.