Astronomy 1010 Mid-Term Part 1 Flashcards

July 4, 2024, 8:36 pm

As with Copernicus and Galileo, Kepler was convinced that God had put the sun in the center of the universe and not the Earth. Think of a minute being divided up into 60 seconds. Which statement about motion in the universe is not true weegy. If you believe that the Pope was the closest human being to God, you had better get Easter right. Given the level of accuracy he was capable of -- fantastic for a time before the use of a telescope -- he would only have been able to detect parallax for a star that was about two thousand Astronomical Units (1 AU = 93 million miles). While these rules might not seem all that Earth shattering, they are. Just because the telescope works on Earth does not mean it works viewing the celestial spheres and the different levels of heaven!

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Copernicus didn't really want to promote his theory in part because he worked for the Catholic church and was aware of their position on the Geocentric solar system (they liked it and were against a heliocentric system). Astronomy 1010 Mid-Term Part 1 Flashcards. What have we been doing while on this little oasis planet? Tycho became convinced for reasons discussed below that a better Earth-centered model would be successful; Kepler was convinced that Copernicus was right, and a better sun-centered system would be successful. This planet has a mass that is four times the mass of the Earth. Stated very simply "An object at rest stays at rest, and a body in motion stays in motion.

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It was important to have the precise coordinates for every astronomical body for every night to compare with the predictions of the different models of the universe. Click here if you want to see the flawed (and very complicated) way Copernicus modeled planetary motion. What is important for us is numerical perspective. Punchline: Today we know that the parallax angle for even the closest star is. This one is pretty much a definition. Answer and Explanation: 1. Motion and varying brightness, since at times as viewed from the earth the. Which statement about motion in the universe is not true. Different eccentricity ellipses all with the same length for their long axis (so also the same value for "a" for each of them). When a planet is to the East of the Sun, it would be visible in the Evening sky after the Sun sets (you can remember this by noting both begin with "E" - east, evening). For instance, here are a few illustrations from the Internet. I guess they get the award for thorough record. So once astronomers realized that the sun was actually the center of planetary motion and not the Earth -- implying that the stars had to be much further away than thought by Ptolemy and people until the 16th century -- deep thinking caps had to be put on for applying the technique of standard candles. Hence, remember that the relativists reject one of the major assumptions of this course -- that we can reason about risk and demonstrate that some beliefs have more inductive support than others, that some beliefs are more probable, more likely to be true, and hence more reliable to follow.

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Exactly why scientific observations are checked and rechecked, argued and reasoned about until consensus is obtained. They are just the basis for all the motions of the Universe. He eventually went blind and died in 1642. For objects billions of light years away, the energy of all the observations probably amounts to less than a snow flake hitting the ground. He basically scraped the system and produced a heliocentric (Sun centered) model for the solar system. A planet located to the West of the Sun would be visible in the Morning sky before the Sun rises (you can remember this by thinking of the M as an upside down W). News flash: There is no such thing as a "brute" fact. A huge issue for Tycho and his contemporaries was "In a six-month period can any movement be detected in any star? " For Tycho, along with other reasons, this was enough to refute the sun-centered model. Long story short, these stars can be spotted with powerful telescopes in galaxies beyond our Milky Way and then the distance to these galaxies computed. H 0 = the Hubble constant -- 70km/s/Mpc (explanation below). 26 million light years) away from us, a galaxy would be moving away from us at a particular velocity due to the expansion of the universe. Which statement about motion in the universe is not true? A. The mysterious dark matter is the - Brainly.com. All Middle School Earth and Space Science Resources. If that is the case, how can you answer a question like "How far is the Sun from the Earth"?

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Most of the time the planet moves in an eastward direction, but on occasion it moves in the opposite direction (westward). It is the space that is expanding, so observers on any dot (galaxy) will observe all the other dots moving away, creating the illusion that the dot is the center of the universe. Which statement about motion in the universe is not true blood saison. By having the other planets go around the Sun, you can easily explain Mercury's and Venus's motion - they are always near the Sun in their smaller orbits, so they never get far from it in the sky - they are visible only in the neighborhood of the Sun either in the early evening or before sunrise. As the article linked above noted, we can get further using Type 1A supernovas that go off in distant galaxies as standard candles, but to get to the edge of our visible universe we need to use the Doppler Red Shift method. For example, the opposition.

A spectrum is actually worth millions of pieces of information. Other planets have different lengths of days and years because they rotate and revolve at different speeds. Following statement applies (in this case k=1) -. He also believed incorrectly (as did Copernicus) that the planets must move in circles. The values he obtained, by using geometry, are inaccurate, because of faulty observations. But there is no center, just a universal colossal expansion. They thought it was due to the fact that the Earth wasn't moving - no motion, no shift in perspective, no observed stellar parallax. F=Force of Gravity, you may want to think about this as the. For the celestial sphere above us at night, a star chart might indicate that the bright star Sirius is located at Right Ascension 06:45:09 (6 hours, 45 minutes, and six seconds), Declination -16:42:58 (-16 degrees, 42 arcminutes, 58 arcseconds). Which statement about motion in the universe is not true detective. When Galileo made some of the first telescopes, the instrument was so new that one could doubt that what it revealed was real. Science is an ongoing, constant checking and re-checking process, because the final, crucial logical process is based on inductive reasoning. Supposedly a single quantum computer would have more computing power than all the computers in the world today put together.