Har'a li-comet tse 'maloa tse fumanoeng ka 2021, comet C/2021 A1, e bitsoang Comet Leonard ka mor'a ho e sibolla Gregory Leonard, e ka bonahala ho ba hlobotseng. leihlo ka la 12 Tšitoe 2021 ha e fihla haufi le Lefatše (e bohōle ba lik'hilomithara tse limilione tse 35), mohlomong lekhetlo la ho qetela, pele e atamela Venus haufi-ufi ka la 18 Tšitoe e atamela haufi le Letsatsi ka la 3 Pherekhong 2022.
Li-comets ke lihloliloeng tse nyane tsa leholimo, tse setseng tse leqhoa ho tloha methating ea pele ea ho etsoa ha karolo e ka ntle. lipolanete, ho potoloha ho potoloha letsatsi ka elliptical litselana. Ka comet's orbit, perihelion ke ntlha ha e le haufi le Letsatsi ha aphelion e le hole ka ho fetisisa. Ha tsamaiso ea letsatsi e ka hare e haufi le perihelion, li-comet li ntša likaroloana le likhase ha li futhumatsoa ke mahlaseli a letsatsi a hlahisang mohatla o ikhethang.
Hajoale, li-comet tse ka bang 3775 li tsejoa sebakeng sa Tsamaiso ea letsatsi.
Ho ipapisitsoe le nako e nkuoeng ho phethela phetoho e felletseng ea Letsatsi, li-comet ke li-comet tsa nako e telele kapa li-comet tsa nako e khuts'oane. Li-comet tsa nako e khuts'oane li phethela phetoho e felletseng ea ho potoloha letsatsi nakong ea lilemo tse 200 (mohlala, Comet Halley e nka lilemo tse 76 ho phethela phetoho e le 'ngoe e felletseng ea letsatsi) ka hona e boetse e bitsoa Near-Earth Comets (NECs). Li-comet tse joalo li shebiloe ka hloko ka lebaka la bokhoni ba tsona ba ho baka tšenyo ho lefatše.
The comet C/2021 A1 (Leonard) ke nako e telele ea comet e sibollotsoeng ke Gregory Leonard ka la 3 Pherekhong 2021. orbital nako ke lilemo tse ka bang 80,000 ho bolelang hore e phethela phetohelo e le 'ngoe ho potoloha Letsatsi ka lilemo tse ka bang 80,000. Kahoo, nakong e tlang e tla atamela Letsatsi ka mor'a lilemo tse 80,000 ho tloha joale e leng se etsang hore monyetla ona o ikhethang.
Ka la 12 Tšitoe 2021, comet Leonard e tla ba lik'hilomithara tse limilione tse 34.9 (0.233 AU; karolo e le 'ngoe ea linaleli AU ke sebaka se bolelang pakeng tsa Lefatše le letsatsi la rona. Lefatshe.
Ka mor'a moo, e tla atamela Venus e le bohole bo haufi haholo ho lik'hilomithara tse 4.2 milione (0.029 AU) ka la 18 Tšitoe 2021. Pele ho feta matsatsi a mabeli hamorao, e tla fula Venus ka mohatla oa eona oa lerole. Qetellong, e tla ba sebakeng sa eona, ke hore, haufi le Letsatsi ka la 3 Pherekhong 2022.
Ha ke tsebe hantle hore na e tla khutla empa haeba e ka khutla, e tla ba lilemo tse 80,000 XNUMX ho tloha joale ha motho a ka e bona hape.
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mehloling
- Zhang Q., et al 2021. Preview of Comet C/2021 A1 (Leonard) and Its Encounter with Venus. The Astronomical Journal, Volume 162, Number 5. E phatlalalitsoe ka 2021 Mphalane 13. DOI: https://doi.org/10.3847/1538-3881/ac19ba
- NASA Astronomy Setšoantšo sa Letsatsi https://apod.nasa.gov/apod/ap211203.html
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