Kodi asteroids ndi zimene amadziwika za iwo?

Kodi asteroids? Chinthu choyamba chimene ine ndikufuna kuti ndinene kuti otchedwa miyala matupi olimba kuti adutsa pa m'mipita dzuwa elliptically zooneka ngati mapulaneti. Komabe, danga asteroids ndi kakang'ono kwambiri kuposa zoona, mapulaneti okha. awiri awo ali conventionally za ranges zotsatirazi: kuchokera makumi ochepa mamita kwa zikwi makilomita.

Ndikudabwa chomwe asteroids, ndipo anthu sangathe kuganiza za kumene zonse izi anadza akuti, zimene zikutanthauza. Amasulira ngati "nyenyezi ngati", ndipo anayambitsa naye zakuthambo XVIII atumwi, dzina lake William Herschel.

Comets ndi asteroids kungakhale wowonekera monga magwero mfundo kuwala kwa enieni, kapena zochepa yowala. Ngakhale kuti deta osiyanasiyana kuonekera matupi akumwamba musati limatulutsa - okha kusonyeza dzuwa imene imagwera pa iwo. Tikumbukenso kuti comets amasiyana asteroids. Choyamba - ndi maonekedwe awo osiyana. Nyenyezi mosavuta kuzindikira ndi phata losonyeza ndi mchira zochokera mwa izo.

Ambiri asteroids, amene amadziwika kuti zakuthambo lero, limayenda pakati pa zili m'njira ya Jupiter ndi Mars pa mtunda wa pafupi 2.2-3.2 ndi. e. (ie, zakuthambo mayunitsi) ndi dzuwa. Pakali pano, asayansi atulukira 20 zikwi asteroids. Olembedwa mayina a magawo fifite zokha. Kodi asteroids kulembetsa? Thupi wakumwamba, amene anatumizidwa angapo, ndipo nthawi zina ngakhale maina awo. zawozo tinapangidwa molondola kwambiri. Tikumbukenso kuti matupi awa lakumwamba amakhala maina limene n'kukagwiritsa otulukira awo. Mayina a asteroids kutenga, kawirikawiri kwa Agiriki.

Cacikulu, tanthauzo pamwamba, n'zoonekeratu kuti asteroids amenewa. Koma n'chiyaninso chimene lililonse kwa iwo?

Chifukwa cha deta oonerako zinthu zakuthambo kupyolera zakutali ndi anatulukira mfundo zosangalatsa. Kuwala kwa ambiri asteroids zikhoza kusintha, ndipo mu nthawi yaifupi kwambiri - izi zimachitika masiku angapo kapena maola angapo. Asayansi yaitali hypothesized kuti kusintha mu kuwala kwa asteroids zokhudza kasinthasintha awo. Tikumbukenso kuti iwo amayamba ndi - woyambirira - akalumikidzidwa awo osasamba. Ndi zithunzi yoyamba imene matupi awa lakumwamba (zithunzi atengedwa thandizo anagwidwa spacecraft), anatsimikizira mfundo imeneyi, koma anasonyezanso zotsatirazi: padziko asteroids kwathunthu anakumba zimaphala kwambiri ndi zimaphala zamitundu yosiyanasiyana.

The asteroid waukulu anapeza ozungulira dzuŵa lathu, kamodzi ankaona lakumwamba thupi Ceres, amene ali kakakulu 975 × 909 Km. Koma kuyambira 2006 kuti walandira udindo osiyana. Ndipo anatchedwa ndi dziko nyenyezi yaing'ono. Ndipo ena awiri akuluakulu asteroid (pansi mayina a Sitimayo inagunda ndi Vesta) ndi awiri a makilomita 500! Tiyenera kuona mfundo ina chidwi. Popeza kuti West - ndi asteroid okha amene makamaka akuoneni apoyera.