Uma viagem pelo Sistema Solar

Transcript

1. Uma viagem pelo Sistema Solar Sessão de Astronomia - Centro LGBT
2. A nossa casa… a Terra
3. As montanhas, o mar...
4. … mas?
5. E quando olhamos para cima?
8. A Terra Plana
9. Modelo Geocêntrico
11. Modelo Heliocêntrico - Galileo e as Luas de Júpiter
12. Estrelas Errantes versus Estrelas Mercúrio, Vénus, Marte, Júpiter, Saturno
13. A Travel through the Solar System HD An animation of our solar system made in Blender 2.6. The sizes of the planets are not correct compared to the distances between them. The distances between the planets are extremely much bigger in real life.
14. Tamanho...
15. Órbitas...
16. E no ínicio?
17. Disco Proto-Planetário
18. Formation of Planets in a Protoplanetary Disk The artist conception shows a newly formed star surrounded by a swirling protoplanetary disk of dust and gas. Debris coalesces to create rocky 'planetesimals' that collide and grow to eventually form planets. The results of this study show that small planets form around stars with a wide range of heavy element content suggesting that their existence might be widespread in the galaxy. Credit: University of Copenhagen/Lars Buchhave
19. Chaotic solar system formation Two planet formation simulations with slightly different initial conditions. Starting with thousands of planetesimals orbiting the sun, we speed up the movie otherwise it would take years to watch - this is 100 million years in one minute! The number of planetesimals decreases as they collide and and merge together, forming larger and larger objects (denoted by the symbol size). As we speed up the movie you see the time averaged elliptical orbits of the planetesimals. Towards the end we slow time down again. Yellow indicates objects too close to the sun to have liquid water, green are objects in the 'habitable zone' and blue are objects so far from the sun that all water would be frozen. These two simulations diverge such that the lower system forms more slowly and ends up with two small planets in the habitable zone, whereas the upper system ends up with one massive habitable planet with 3x the gravity and a longer year. Brincadeiras...
20. Planetas Rochosos
21. Planetas Gasosos
23. Luas
24. Não apenas Planetas… muito mais...
25. Cometas… Asteróides… Meteoróides… Metoritos
26. Puff...
27. Sixteen Comets Touring the Inner Solar System Stationed in a halo orbit around the Earth-Sun Lagrange point since 1996, the Solar and Heliospheric Observatory (SOHO) has monitored the Sun for nearly 20 years. The Large Angle and Spectrometric Coronagraph (LASCO) instrument blocks out the bright solar disk, making it easier to see the corona of plasma and dust around the Sun, normally only visible during solar eclipses. This instrument also provides a very large field of view of the region around the Sun. In addition to the benefit of this capability in solar studies, SOHO/LASCO can see many comets which pass very close to the Sun, called 'sungrazers'. Observers on Earth rarely see these objects as they are obstructed by the Sun's glare and Earth's atmospheric scattering at sunrise and sunset. SOHO/LASCO has seen not only many known comets, but discovered many more NEW sungrazing comets. At the time of this writing, the discovery count is approaching 3000. There are nearly sixteen comets and trajectories plotted in these visualizations which covers the time frame from January 2005 to December 2013 at the rate of one frame of the movie corresponding to one day. The trails are color coded based on group membership: Yellow: Non-periodic comets. Cyan: Periodic comets. The trails represent the orbital path of the comet nucleus, NOT the meant to represent the comet tail. This visualization was actually a small 'test of concept' for the larger visuals, 'Lots of Comets', linked below: http://sungrazer.nrl.navy.mil/ Credit: NASA's Scientific Visualization Studio. Music: Turn On by RW Smith. Youtube Audiolibrary Link: https://www.youtube.com/audiolibrary_download?vid=e53d4762a37458d4 ------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------- Twitter: https://twitter.com/SciTechFliX Google +: https://plus.google.com/+SciTechFliXTube Subscribe to FeedBurner: https://feedburner.google.com/fb/a/mailverify?uri=TubeCloud
28. Perguntas?
30. Obrigad… … e mais viagens nos esperam! Dani Bento danibento@overdestiny.com