태양계 5편 - 소행성, 소행성군, 소행성족 / 태양계에는 1조 개 이상의 소천체가 존재한다.
우주아저씨
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. . . 소행성대는 화성과 목성 궤도 사이 궤도장반경이 화성, 약 1.5AU와 목성, 약 5.2AU 사이에 분포되어있는 소행성들을 포함합니다. 도넛모양의 형태이며 높이 1억 km 정도이고 두께는 2억 km 이상되며 소행성대는 3~6년마다 한 바퀴씩 태양 주위를 돌고 있다. 이곳에 위치한 소행성들과 태양의 평균 거리는 약 2.2 AU 이상입니다. 소행성대가 처음 발견된 시기는 19세기이지만 소행성대를 연구하려는 노력은 18세기 부터 있어왔는데 당시 천문학자들은 화성과 목성 사이에 비어있는 큰 간격을 이상하게 여겼습니다. 이후 19세기에 들어 세레스라는 소행성이 이 부근에서 발견되었고 그후 점차 더 많은 소행성들이 화성과 목성 사이에서 발견되기 시작하였습니다. 이곳에는 수백만 개 이상의 소행성이 있을 것으로 여겨지며 이렇게 많은 소행성들이 분포되어 있음에도 불구하고 비워있는 텅빈 공간과도 같은데 그 이유는 소행성대가 워낙 넓기 때문입니다. . . . Source : https://www.youtube.com/channel/UCmHof0uMcf-KZOZfxmbRrOw/about?view_as=subscriber Image Source : https://commons.wikimedia.org/wiki/File:Potw1749a_Pallas_crop.png https://commons.wikimedia.org/wiki/File:SPHERE_image_of_Hygiea.jpg https://commons.wikimedia.org/wiki/File:Rosetta_triumphs_at_asteroid_Lutetia.jpg https://en.wikipedia.org/wiki/File:3_Juno_VLT_(2021),_deconvolved.pdf https://commons.wikimedia.org/wiki/File:Vulcanoidorbits.svg https://commons.wikimedia.org/wiki/File:Minor_Planets_-_Aten.svg https://commons.wikimedia.org/wiki/File:Outline_map_of_Urals_Federal_District.svg https://commons.wikimedia.org/wiki/File:1862Apollo_(Lightcurve_Inversion).png https://commons.wikimedia.org/wiki/File:Modelled_shape_of_588_Achilles_from_its_light_curve.png https://commons.wikimedia.org/wiki/File:624_Hektor.png https://commons.wikimedia.org/wiki/File:Kuiper_belt_plot_objects_of_outer_solar_system.png https://commons.wikimedia.org/wiki/File:162173_Ryugu.jpg https://commons.wikimedia.org/wiki/File:%E3%81%AF%E3%82%84%E3%81%B6%E3%81%952.jpg https://commons.wikimedia.org/wiki/File:Potw1749a_Pallas_crop.png https://en.wikipedia.org/wiki/File:3_Juno_VLT_(2021),_deconvolved.pdf https://commons.wikimedia.org/wiki/File:AnimatedOrbitOf3Juno.gif https://commons.wikimedia.org/wiki/File:AnimatedOrbitOf2Pallas.gif https://commons.wikimedia.org/wiki/File:Animation_of_NEAR_Shoemaker_trajectory.gif https://commons.wikimedia.org/wiki/File:Rosetta_triumphs_at_asteroid_Lutetia.jpg https://commons.wikimedia.org/wiki/File:Rosetta_spacecraft_model.png https://commons.wikimedia.org/wiki/File:Artist%E2%80%99s_impression_of_asteroid_(25143)_Itokawa_(eso1405b)_(cropped).jpg https://commons.wikimedia.org/wiki/File:Chariklo_with_rings_eso1410b.jpg [email protected] #태양계#소행성#우주다큐
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