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[Politik]
Bumi berbulan dua selama dua bulan tapi bukan pada bulan dua
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Edited by kemaruk at 20-9-2024 12:56 PM
Earth will get a second "mini-moon" for 2 months this year
Earth will get a second moon for about two months this year when a small asteroid begins to orbit our planet. The asteroid was discovered in August and is set to become a mini-moon, revolving around Earth in a horseshoe shape from Sept. 29 to Nov. 25.
Researchers at the Asteroid Terrestrial-impact Last Alert System, an asteroid monitoring system funded by NASA, spotted the asteroid using an instrument in Sutherland, South Africa and labeled it 2024 PT5.
Scientists from the Universidad Complutense de Madrid have tracked the asteroid's orbit for 21 days and determined its future path. 2024 PT5 is from the Arjuna asteroid belt, which orbits the sun, according to their study published in Research Notes of the AAs.
But Earth's gravitational pull will draw 2024 PT5 towards it and, much like our moon, it will orbit our planet — but only for 56.6 days.
While other non-Earth objects, or NEOs, have entered Earth's orbit before, some don't complete full revolutions of Earth. Some, however, do and become so-called mini-moons.
An asteroid called 2020 CD3 was bound to Earth for several years before leaving the planet's orbit in 2020 and another called 2022 NX1 became a mini-moon of Earth in 1981 and 2022 and will return again in 2051.
2024 PT5, which is larger than some of the other mini-moons, will also return to Earth's orbit — in 2055.
Earth's gravity will pull it into its orbit and the asteroid will have negative geocentric energy, meaning it can't escape Earth's gravitational pull. It will orbit around earth in a horseshoe shape before reverting back to heliocentric energy, meaning it will rotate around the sun again, like the other planets and NEOs in our galaxy.
Even after it leaves orbit, it will stay near Earth for a few months, making its closest approach on Jan. 9, 2025. Soon after, it will leave Earth's neighborhood until its path puts it back into our orbit in about 30 years.
The study's lead author Carlos de la Fuente Marcos told Space.com the mini-moon will be too small to see with amateur telescopes or binoculars but professional astronomers with stronger tools will be able to spot it.
CBS News has reached out to Marcos for further information and is awaiting response.
https://www.cbsnews.com/news/earth-second-mini-moon-2024/
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Kalau tau pun, tak nampak
The study's lead author Carlos de la Fuente Marcos told Space.com the mini-moon will be too small to see with amateur telescopes or binoculars but professional astronomers with stronger tools will be able to spot it. |
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Edited by kemaruk at 20-9-2024 12:57 PM
tinot acaner nak bagi gambar keluar dekat main page CI yer
dah lupa
*takpe dah settle
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kemaruk replied at 20-9-2024 12:54 PM
tinot acaner nak bagi gambar keluar dekat main page CI yer
dah lupa
Iols pun tatau.. tak habes ngaji dgn otai |
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Wahh pujian utk bangkem sbb buka tred ilmiah, tajuk kreatif memeningkn n xda mention 1mdb najib razak  |
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Author |
Post time 20-9-2024 09:52 PM
From the mobile phone
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izwan_izi replied at 20-9-2024 08:21 PM
Iols vote Baru Bian...org politik Sabah ni kan..?
Ye.. sabah bumi kenyalang |
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Edited by izwan_izi at 20-9-2024 10:01 PM
kemaruk replied at 20-9-2024 09:52 PM
Ye.. sabah bumi kenyalang
Kalau Sabah bumi kenyalang...
Sarawak dibawah bayu laa bangkem...
Ke Sarawak darul aman...? hahahaha..
Tengkiuu bangkem hadiahkan tacang kt iols.. |
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izwan_izi replied at 20-9-2024 12:21 PM
Iols vote Baru Bian...org politik Sabah ni kan..?
Aiol tumbuk juga uols. Sarawak la.  |
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Author |
Post time 20-9-2024 11:40 PM
From the mobile phone
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Amboih momod @seribulan bagi tacang
Kena dengan tema thread |
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So hujan ribut banjir typhoon lately ni ada kena mengena tak dgn kewujudan or kemunculan mini-moon ni? If dia meng-orbit bumi so mesti ada effect kt kita kan? Haha sorry aku dulu blaja fizik duk row blakang xbape nk dgr cikgu ckp apa kt depan |
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Adakah asteroid ini akan memberi kesan kepada nilai ringgit? |
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fefeeling replied at 21-9-2024 06:28 AM
So hujan ribut banjir typhoon lately ni ada kena mengena tak dgn kewujudan or kemunculan mini-moon n ...
Kan, teringin gak nk tau kesan ada 2 bulan. Adakah air pasang makin besar sb tarikan grabiti jadi double? |
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haha yg puji puji acik kemaruk, dpt tacang pastu alasan ganjaran ikhlas. yg lain dpt point alasan iklan penipuan spam. kemahen |
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Post time 20-9-2024 12:44 PM
变色卡
Post time 20-9-2024 12:50 PM
