Parallax * Parallax is the apparent movement of a nearby object when it’s viewed from 2 different points. * The farther the star the smaller the angle * Distance from one side of earth orbit to other is 300km. * distance from earth to sun is 1 AU * Can only measure close stars reliably. * Parallax is very small due to distance to stars. Makes it harder to measure accurately. * Relies on no assumptions‚ only earth’s geometry around the sun. * Uses simple trigonometry
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The Hubble Space Telescope was created by and named after astronomer Edwin P. Hubble. He was known for his creation of Hubble’s Law which is used to calculate the rate at which the universe is expanding. He is also known for his discovery of the galaxies that are outside the Milky Way. The Hubble Space Telescope is a large telescope that is placed in orbit around the earth. Scientists have figured out that by placing a telescope in space‚ putting it outside of earth’s atmosphere‚ a telescope can
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Galaxy’s disk (fyi: Galaxy = Milky Way; galaxy = any other galaxy ) can be approximated by an exponential function. If stars dominate the mass distribution of the disk‚ we can then say that the mass distribution of the disk follows an exponential function‚ like this: Σ(r) = Σ0 e−r/h ‚ where h is just a scaling factor‚ a constant. Using this function‚ derive an analytic expression for how the orbital (circular) velocity of the stars dependence on the distance to the center of the galaxy‚ i.e.‚ Vc =
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“A Hubble Space Telescope photograph of the universe evokes far more awe for creation than light streaming through a stained glass window in a cathedral.” We know more about our universe than we ever have thanks to the Hubble Space Telescope’s clear crisp photos of objects far away in space. “Earth’s atmosphere alters and blocks the light that comes from space. Hubble orbits above Earth’s atmosphere‚ which gives it a better view of the universe than telescopes have at ground level.” (NASA‚ 2009)
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meaning takes the mind into a mysterious spectrum. The very foundation of Cosmology began with Astronomer Edwin Hubble in 1929. He discovered that other galaxies existed in the universe and determined that these galaxies were moving away from each other at a rate that was constant with the distance between them. The farther away from Earth the galaxy was‚ the faster they would be traveling away from us. In theory‚ this also proved that universe was expanding. This discovery assisted the profound astronomer
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SCI 224 - Scientific Equations Study Guide Scientific Equations Study Guide Week 1 Gravitational Force Calculate the gravitational force between a 1000 kg object and a 1300 kg object separated by a distance of 5 m. Solution: Circular Speed Calculate the circular speed of an object that orbits the Sun at a distance of 6.7 AU. Solution: The astronomical unit 1 AU = 1.5 × 1011 m The solar mass M = 1.989 × 1030 kg SCI 224 - Scientific Equations Study Guide Week 2 Wien’s Law
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the universe became what we see today is what scientist calls “The Big Bang Theory” not to get confused with the show. Scientist base the Big Bang theory on many different factors/observations. The most important is the “redshift” of very far away galaxies. Redshift is the doppler reaction that occurs in light. When an object moves away from earth‚ it looks reddish because the movement stretches the wavelength. The reddish color occurs because; red is the lowest wavelength on the visible. The more
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knowing we do not know where we actually begin or came from‚ there must be someone that actually created us into being. Being the only one that living in the whole milky way galaxy. Earth is the only one called the living planet where we actually lived. Having different views we can conclude that a mighty being created the whole galaxy and us therfore the start of everything. Humans and animals were created together with the‚ trees ‚
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from internet. PMS/CSS Notes Contents Topic 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. Nature of Science Contribution of Muslims Scientists Impact of Science on Society Universe Galaxy Solar system Sun Earth Atmosphere Weather Cloud Rain Acid Rain Minerals Rock (Mineral) Mineral Deposit Lava Solar and Lunar Eclipses Day and Night and their variation Energy Sources and Resources of Energy Energy conservation Ceramics Plastics Semiconductors
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Looking Into Space: Questions: 1. A galaxy is a collection of planets of stars and space. The name of our galaxy is the “milky way”‚ and its shape is of a spiral. 2. Another galaxy found in space is called “Andromeda”. 3. There are millions upon millions of galaxies in the universe. 4. Cosmology is the study of the cosmos. 5. Light Year: The distance that light travels in a vacuum in one year‚ approximately 9.46 trillion (9.46 × 1012) kilometers or 5.88 trillion (5.88 × 1012) miles. Star:
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