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This is the first lecture series of my online introductory undergraduate Astronomy course. This video series was used at William Paterson University and CUNY Hunter in online classes as well as to supplement in-person course material. Notes and links are present in the videos at the start of each lecture.
0:00:01 - lecture 1: Our Place in Space
0:14:11 - lecture 2: The Celestial Sphere
0:51:01 - lecture 3: The Seasons, the Year and the Day
1:07:05 - lecture 4: Lunacy! Phases, Eclipses and Orbit of the Moon
1:25:11 - lecture 5: Distance, Parallax and Parsecs
1:43:05 - lecture 6: How Round is the Earth? How Far is the Sun?
1:52:26 - lecture 7: I Got the Sun in the Mornin' and the Moon at Night.
2:01:53 - lecture 8: Why did we once think Earth was at the Center?
In the first lecture, I talk about how we navigate our way around the sky. I talk about the constellations and coordinate systems of the sky. (WOOPS! Did you catch that mistake? Yup, I made a couple, but you know I know better. I said "Sun orbits the Earth" once in there. Oh well, I'm trying to talk fast, remember a script, remember the images I put together, and do it all in a quiet room, keeping my energy up and zooming. Wowsers!). In the second lecture, I decided to practice more so you can learn about the Celestial Sphere, equatorial coordinates, and where stars rise and set. Next, I discuss the motions of the Earth and the reason for the seasons. Following this, I discuss the motions of the Moon and the reason for the phases and eclipses. This leads us to discuss the nature of distance in astronomy and its measurement with parallax. Once you know distances, we can chat about how we know the size of the Earth, and how that can be used to determine the distance to the Sun, given that Venus does a transit across the Sun. There's more to do, so I continue my discussion of the nature of distances and sizes in astronomy, and its measurement just positions in the sky. Wherein we chat about how we know the relative sizes and distances of the Sun and Moon to the Earth. Finally, I go back in time to discuss Aristotle's arguments for a stationary Earth, and the construction of Ptolemy's Geocentric Model that ruled the roost for almost 2000 years, until it was dethroned in 1610.
Негізгі бет Ғылым және технология Foundations of Observational Astronomy: The Moon, the Seasons, and Mapping the Sky
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