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Saturno
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Legenda: A Wide Field Camera 3 do Telescópio Espacial Hubble da NASA/ESA observou Saturno em 20 de junho de 2019, quando o planeta fez sua maior aproximação Terra naquele ano, a aproximadamente 1,36 bilhão de quilômetros de distância. A imagem mostra faixas coloridas de gás na superfície do planeta, bem como seus proeminentes anéis compostos por gelo e material rochoso.
Crédito: NASA, ESA, A. Simon (Centro Espacial Goddard) e M.H. Wong (Universidade da Califórnia, Berkeley)
Link do crédito
Termos do Glossário:
Gigante gasoso , Planeta gigante , Planetas Externos , Anel , Saturno
Categorias
Sistema Solar
Licença: Creative Commons Attribution 4.0 International (CC BY 4.0) Creative Commons Attribution 4.0 International (CC BY 4.0) ícones
Arquivo
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262.21 kB)
Decolagem da Apollo 11 em um foguete Saturno V
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Legenda: O veículo espacial Saturno V da Apollo 11 decola com os astronautas Neil A. Armstrong, Michael Collins e Edwin E. Aldrin, Jr., às 9h32, horário local, em 16 de julho de 1969, do Complexo de Lançamento 39A no Centro Espacial Kennedy da NASA, para o primeiro pouso na Lua.
Crédito: NASA
Link do crédito
Termos do Glossário:
Apollo , Lua
Categorias
Exploração Espacial
Licença: Domínio Público Domínio Público ícones
Arquivo
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11.91 MB)
Rhea reappearing after occultation by Titan
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Legenda: On October 27, 2009, NASA’s Cassini spacecraft orbiting around Saturn captured this view of Saturn's moon Rhea as it began to emerge after being hidden by Saturn's largest moon Titan during an occultation. An occultation is a celestial event in which one object moves in front of another and temporarily blocks the first object from view.
In this image, Titan — about 5,150 km across — was closer to the spacecraft at about 1 million km, while Rhea — roughly 1,528 km in diameter — was farther away at about 2.3 million km. Titan’s high-altitude atmospheric haze is visible as a faint glow around its limb, showing the difference in surface and atmospheric properties between these two moons.
Scientists study occultations like this because watching how one moon disappears behind or reappears from another helps refine our understanding of their orbits and physical characteristics.
Crédito: NASA/JPL/Space Science Institute
Link do crédito
Termos do Glossário:
Luas , Titã , Ocultação
Licença: Domínio Público Domínio Público ícones
Arquivo
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Equatorial Milky Way
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Criado para o OAE
Legenda: Honourable mention in the 2022 IAU OAE Astrophotography Contest, category Still images of celestial patterns: Equatorial Milky Way
Taken in Bromo-Tengger-Semeru National Park, Java Island, Indonesia, in March 2016, this image captures regions of the southern Milky Way and, at its left edge, the two planets Mars and Saturn. Mars appears orange and is similar in colour to the star Antares, whose Greek name — anti Ares — references this. Saturn is a little bit fainter than Mars, but clearly visible among the stars of Ophiuchus, above the Pipe Nebula and forming an isosceles triangle with Mars and Antares.
Mars is on the top and Saturn is vertically below. Visible to the naked eye, both planets have significance in many cultures around the world. In Roman mythology Mars is the god of war and fertility, and Saturn the god of sowing and agriculture. Its Greek equivalent, the god Kronos, is also considered the regent of completion. Indigenous Australians, including the Kamilaroi and Wailan people, associate Saturn with “wunygal”, a small bird. Mars is called Iherm-penh (something burnt in flames) by the Anmatyerre people of the Central Desert, while the Kokatha people of the Western Desert associate Mars and the star Anatres with the red-tailed black cockatoo (Kogolongo).
In the middle of this photograph, the most famous southern constellations are clearly recognisable: the Southern Cross (Crux), the pointer stars, Alpha and Beta Centauri, the dark Coalsack Nebula and the red Eta Carina Nebula, which is not visible to the unaided eye but is prominent in modern photographs. In the 19th century, the star eta Carinae had been the second-brightest star in the sky for some time, but since it varies irregularly, it has hardly been recognisable in recent decades, and its future visibility is unpredictable.
Triangulum Australe is visible between the pointer stars and the Scorpion, and in the constellation of Centaurus, the bright globular star cluster Omega Centauri is clearly displayed. It was considered a “nebulous star” since antiquity and, thus, was listed in star catalogues for at least 2000 years. Only within the last century did astronomers discover that globular star clusters are in the halo of our galaxy and that this one consists of roughly 10 million stars.
The dark regions in the Milky Way, which are cool, dense clouds of dust and gas, form the head and body of the Celestial Emu Tchingal. Together with the Southern Cross and the pointer stars, they appear in the Dreamtime stories of many Indigenous Australians. One story associated with the Djab Wurrung and the Jardwadjali people is part of a Dreamtime Story involving Tchingal, the Bram-bram-bult brothers (the pointer stars), their mother Druk (Delta Crux), and Bunya the hunter, who gets transformed into a possum (Gacrux, the red star at the top of the Southern Cross).
Crédito: Giorgia Hofer/IAU OAE
Termos do Glossário:
Poeira , Marte , Via Láctea , Saturno , Escorpião , Cruzeiro do Sul , Nuvem de poeira , Extinção interestelar , Alpha Centauri
Categorias
Via Láctea e Meio Interestelar
, Astronomia a Olho Nu
Licença: Creative Commons Attribution 4.0 International (CC BY 4.0) Creative Commons Attribution 4.0 International (CC BY 4.0) ícones
Este arquivo no Zenodo ( imagem 1.61 MB)
Pan
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Legenda: A espaçonave Cassini da NASA capturou esta imagem da lua Pan de Saturno em março de 2017. Pan é chamada de lua pastora, que orbita Saturno dentro da lacuna de Encke dos anéis do planeta. A borda fina impressionante provém do material que Pan coleta durante sua trajetória pelos anéis. Pan tem um diâmetro médio de quase 30 km.
A espaçonave Cassini, da NASA, capturou esta imagem da lua Pan em março de 2017. Pan é uma chamada lua pastora, que orbita Saturn dentro da divisão de Encke nos anéis de Saturno.
Crédito: NASA/JPL-Caltech/Instituto de Ciência Espacial
Link do crédito
Termos do Glossário:
Luas
Categorias
Sistema Solar
Licença: Domínio Público Domínio Público ícones
Arquivo
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