ʻO nā galaxia maikaʻi loa o ka Universe

na galaxia nani loa

Wahi a ka poʻe kilo hōkū, aia ma waena o 100.000 a 200.000 miliona mau ʻanuʻu ma ke ao ʻike. Hoʻokaʻawale nō hoʻi nā Astronomers i ʻekolu hui like ʻole e pili ana i ko lākou ʻano: elliptical, spiral, a irregular. Ua hoʻolālā ʻia kēia ʻōnaehana hoʻokaʻawale e Edwin Hubble, he kilo hōkū ʻAmelika, a ua hoʻokumu wale ʻia ma ke ʻano ʻike a me ke ʻano o ke aniani, ʻaʻole nā ​​ʻano ʻē aʻe e like me ka wikiwiki o ka hoʻokumu ʻana o nā hōkū a i ʻole ka hana o ka nucleus galactic. Aia kahi papa inoa o nā nā hōkūhele nani loa o ke ao holoʻokoʻa.

Ma kēia ʻatikala e haʻi aku mākou iā ʻoe i nā galaxies maikaʻi loa i ke ao holoʻokoʻa, ko lākou ʻano a me ko lākou koʻikoʻi.

ʻO nā hiʻohiʻona o nā galaxia nani loa

nā hōkūhele nani loa

ʻO kahi laʻana hiʻohiʻona o ka galaxy spiral ʻo ia ka Milky Way, nona ka hiʻohiʻona ʻokoʻa ʻo kona mau lima spiral. Ua manaʻo ʻia ʻo ka makahiki o ka ʻO Milky Way ma kahi o 13.200 biliona makahiki a he 100.000 mau makahiki māmā kona anawaena. ʻAʻole paʻa loa ka diski o ka galaxy, akā ʻano ʻino, e like me ka hōʻike ʻana o kekahi mau kiʻi. Hoʻohālikelike ka poʻe Astronomers i kēia hoʻololi ʻokoʻa i ka mana o nā galaxies ʻelua e pili ana: nā ao Magellanic nui a liʻiliʻi. Ma waho aʻe o kāna diski, he halo nō ka Milky Way.

Wahi a ka ʻikepili ʻepekema, manaʻoʻiʻo ʻia kēlā ʻO ka 90% o ka nui o kā mākou galaxy he mea ʻeleʻele. ʻOiai ke ʻike ʻole ʻia, hiki ke ʻike ʻia ke ola ʻana o kēia mea enigmatic ma o ka hoʻohālikelike ʻana i ke ʻano o ka Milky Way me ka ʻole o ia mea, e like me ka halo o ka mea ʻeleʻele e hoʻopuni ana iā ia.

Manaʻo ʻia ka galactic halo e ʻoi aku ma mua o 15 kiloparsecs a ua haku ʻia me kahi hui maikaʻi o ke kinoea interstellar, nā hōkū kahiko a me nā mea ʻeleʻele. Aia ma ka lae o loko o kekahi o nā pūʻulu o nā ʻāpana like ʻole i kapa ʻia ʻo ka lima Orion, Aia ko mākou ʻōnaehana solar ma kahi o 27.000 mau makahiki māmā mai ka Galactic Center.

I loko o ka mōʻaukala kanaka, ua hoʻāʻo ke kanaka e hoʻomaopopo i ka nui o ke ao holoʻokoʻa, ʻaʻole hiki ke wānana. ʻOiai ko mākou holomua nui i ka hoʻomaopopo ʻana i ka honua, me nā hōʻike hou e puka mai ana i kēlā me kēia lā, he nui kā mākou e aʻo ai a ʻike.

No ka loaʻa ʻana o ka ʻike hohonu o kekahi o nā mea kupanaha loa e ola nei, e hoʻomaka mākou i kahi huakaʻi ma waena o ka honua, e hele ana ma waho o ko mākou Milky Way a e ʻimi ana i nā galaxies kokoke e like me ka Sombrero, Andromeda, a me ka Tadpole. He mea pono e hoʻomaopopo i loko o ʻehā piliona makahiki, e hui pū ko mākou Milky Way a me Andromeda, e hana ana i kahi hui hou i kapa ʻia ʻo Lactomeda.

ʻO nā galaxia maikaʻi loa o ka honua

Ke ala waiū

Milky Way

ʻO ka huaʻōlelo Milky Way e pili ana i ka galaxy i loko o kā mākou ʻōnaehana solar a me kona mau kino lani āpau. Hana ʻia ia i nā hōkū, nā hōkūhele a me nā kino lani ʻē aʻe, i hoʻopaʻa ʻia e ka ikaika o ka umekaumaha. Ua manaoia Aia ma kahi o 13.600 biliona makahiki o ka Milky Way a aia i loko o ka Hui Kūloko o nā galaxies, aia pū kekahi Andromeda a me kekahi mau galaxies liʻiliʻi ʻē aʻe. Ua manaʻo ʻia he 100.000 mau makahiki māmā ke anawaena a aia ma kahi o 100 billion mau hōkū, e lilo ana ia i kekahi o nā galaxies koʻikoʻi o ke ao holoʻokoʻa.

ʻO kā mākou galaxy, e noho ana i ka lua o ka nui i loko o ka Local Group, he 10^12 ka nui o ka nui o ko ka lā. Hoʻokaʻawale ʻia ʻo ia ma ke ʻano he galaxy spiral barred, me ke anawaena awelika i manaʻo ʻia o ma kahi o 100.000 mau makahiki māmā. He home ka galaxy ma waena o 200.000 a me 400.000 miliona mau hōkū. ʻO ka mamao mai ko kākou hōkū, ʻo ka Lā, a i ke kikowaena o ka galaxy ma kahi o 25.766 mau makahiki māmā.

Laau Hockey Galaxy

ʻO ka lālani Hockey Stick, i kapa ʻia ʻo NGC 4656, ʻo ia ke kumu nui o kēia kiʻi i hopu ʻia e ka NASA/ESA Hubble Space Telescope. Aia kēia galaxy i loko o ka pūʻulu hōkū o Canes Venatici, a ʻoiai ke kuhi hewa ʻia kona inoa ma muli o ke kuanaʻike palena ʻole o kēia kiʻi, ʻo ke ʻano maoli nō ia o kahi lāʻau lōʻihi a hoʻoheheʻe ʻia e hohola ana ma ke ākea ma mua o ka ʻeke ʻana ma kekahi kihi. e like me ka lāʻau hockey cosmic.

Hiki ke hoʻopili ʻia kēia ʻano ʻokoʻa i ka ka launa pū ʻana ma waena o NGC 4656 a me nā galaxia ʻelua e pili ana, NGC 4631 a me NGC 4627, ka mea i hoʻololi i nā hōkū o ka galaxy, ke kinoea a me ka lepo i ke ʻano kupaianaha a kupaianaha a mākou e ʻike nei i kēia lā. He mea hoihoi ia ke nānā aku pehea e hiki ai i kēia mau pilina ma waena o nā galaxia ke hoʻololi i ko lākou helehelena a hoʻoulu i nā ʻano hiʻohiʻona.

Kapua Magellanic Nui

ʻO ka Large Magellanic Cloud, ʻike ʻia hoʻi ʻo LMC, he galaxy dwarf ia He ʻāpana ia o ka Pūʻulu Kūloko a aia ma kahi o 163.000 mau makahiki māmā mai kā mākou Milky Way. Hoʻokaʻawale ʻia ʻo ia ma ke ʻano he galaxy irregular ma muli o kona ʻano ʻino a me ka nele o kahi puʻupuʻu waena. ʻO ka LMC kahi home o nā ʻāpana hoku he nui, ʻo ia hoʻi ka Tarantula Nebula, ʻo ia kekahi o nā ʻāpana hana hoku ikaika loa ma ka Pūʻulu Kūloko holoʻokoʻa. Eia kekahi, ua lilo ka LMC i wahi kuhikuhi koʻikoʻi no ka poʻe astronomers a me ka cosmologists i kā lākou hoʻāʻo ʻana e hoʻoholo i ka piʻi ʻana o ke ao holoʻokoʻa.

ʻO ka Large Magellanic Cloud kahi aniani liʻiliʻi i ʻāpana o ka hui kūloko o nā galaxies. ʻOiai ʻo ia aia ma kahi mamao ma kahi o 160.000 mau makahiki māmā mai ka Honua, ʻike mau ʻia e ka maka ʻokoʻa ma ke ʻano he mea nawaliwali aia ma ka ʻaoʻao hema o ko kākou honua, ma waena o nā hōkū o Dorado a me Mensa. Ua hele mua ka galaxy i ka lehulehu mahalo i ka mea mākaʻikaʻi Pukiki ʻo Ferdinand Magellan, nāna i ʻike mua, no laila hāʻawi i kona inoa i ka galaxy.

Galaxy NGC 4248

ʻO NGC 4248 ka hōkūhele i hiki ke ʻike ʻia ma ka pūʻulu hōkū o Canes Venatici. Aia ʻo NGC 4248, he galaxy spiral, ma ka pūʻulu hōkū o Canes Venatici a Aia ma kahi o 25 miliona mau makahiki māmā mai ko kākou honua. Ua kiʻi ʻo NASA/ESA Hubble Space Telescope's Wide Field Camera 3 i kahi kiʻi e hōʻike ana i kahi hōʻiliʻili kupanaha o ke kinoea ʻālohilohi, ka lepo obsidian a me nā hōkū ʻālohilohi: ka spiral galaxy NGC 4248.

Andromeda galaxy

Andromeda

ʻO ka Andromeda galaxy, ʻike ʻia hoʻi ʻo M31, he galaxy spiral aia ma kahi o 2,5 miliona mau makahiki māmā mai ka Honua. ʻO ia ka galaxy kokoke loa i ka Milky Way a ʻike ʻia e ka maka ʻōlohelohe i ka lewa pō. Me ke anawaena o ma kahi o 220.000 mau makahiki malamalama, ʻo ia ka galaxy nui loa i loko o ka Local Group of galaxies, e komo pū ana me ka Milky Way a ma kahi o 54 mau galaxies liʻiliʻi. Ua ʻike ʻia ʻo Andromeda galaxy he lua ʻeleʻele nui ma kona kikowaena, me ka nui o ka nui ma kahi o 140 miliona mau manawa o ka lā.

Aia ma ka hui hōkū ʻo Andromeda, aia ma kahi o 2.537 miliona mau makahiki māmā mai ka Honua. ʻOiai he mamao loa kēia mamao, ʻo ka pili o ka galaxy i ko kākou honua, ʻo ia ka mea mamao loa i ʻike ʻia e ka maka ʻōlohelohe mai ka Honua. Eia kekahi, ʻO ia ke aniani nui kokoke loa iā mākou a loaʻa kekahi mau hōkū e like me ko ka Milky Way.

Manaʻo wau me kēia ʻike hiki iā ʻoe ke aʻo hou aʻe e pili ana i nā galaxies maikaʻi loa o ke ao holoʻokoʻa a me ko lākou mau ʻano.


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  1. He kuleana no ka ʻikepili: Miguel Ángel Gatón
  2. Ke kumu o ka ʻikepili: kaohi SPAM, hoʻokele ʻōlelo.
  3. Legitimation: Kou ʻae
  4. Ka kamaʻilio ʻana o ka ʻikepili: ʻaʻole e hōʻike ʻia ka ʻikepili i nā ʻaoʻao ʻekolu koe ka mana o ke kānāwai.
  5. Pūnaewele mālama: Pūnaewele i mālama ʻia e Occentus Networks (EU)
  6. Nā Kuleana: I kēlā me kēia manawa hiki iā ʻoe ke palena, hoʻōla a kāpae i kāu ʻike.