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Astronomy 100  Name(s):
Astronomy 100 Name(s):

... Once The Sky is open, go to Data → Location and confirm the location is Seattle, Washington (if not, you can choose this from the predefined list). Next go to Data → Time and set the time for 9 p.m. tonight. If you have time, you may wish to play with some of the following controls: on the second li ...
Astronomy in Korea - Royal Asiatic Society
Astronomy in Korea - Royal Asiatic Society

... [page 9] A stone tablet in Pyengyang marks a traditional site of Kija’s well. Another interesting item is the measurement and standardization sound about 1000 B. C.** A few eclipses are given during the Kija period, but a complete record is lacking. The earliest was a solar eclipse on the last day o ...
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... The Sun is the star for our solar system. It is much larger than any of the 8 planets that orbit it. Pictures or posters of our solar system are generally too small to accurately depict the correct scale for distances between the planets as well as the planet sizes compared to the Sun. Making correc ...
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PTYS/ASTR 206 – Section 2 - Lunar and Planetary Laboratory

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... b. Find R and t such that the moon stops relative to Sun at time t. c. Prepare three (different) plots of the orbit of moon. The first uses the value of R you found in part (b). The second uses R/2 and third 2R. Looking over your shoulder at your wonderful graphs, Tom Hunks says these orbits don’t l ...
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... – this is called core accretion model • The result was a huge planet with an enormously thick, hydrogen-rich envelope surrounding a rocky core with 5-10 times the mass of the Earth Jovian planets are gaseous because of the capture of gases. They are large because of taking both dust grains and ices ...
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... (amount of energy put out every second in form of radiation). Luminosity also called “absolute brightness”. How bright a star appears to us is the “apparent brightness”, which depends on its luminosity and distance from us: apparent brightness ...
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... how long would a message from a spacecraft traveling near Jupiter take to reach Earth? The model Jupiter is 206 feet from the model Earth, so a radio signal would take at least 40 minutes to reach Earth. Can you find? Look for the prototype of Pioneer 10, the first spacecraft to travel to Jupiter, i ...
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... • The bright planets (Venus, Jupiter, Mars, Saturn) are the brightest objects in the night sky (with the exception of the Moon) & they rise in the east and set in the west • “Planet” derived from Greek for “Wanderer” – The planets move slowly among the stars staying near the ecliptic – Different pla ...
AST 301 Introduction to Astronomy - University of Texas Astronomy
AST 301 Introduction to Astronomy - University of Texas Astronomy

... Since distance α 1 / parallax, Spica must be at twice the distance of Canopus. (The numbers are 100 pc and 200 pc, but you don’t need to know that.) The more distant star (Spica) appears fainter. Since it is twice as distant as Canopus, it appears 4 times fainter, or ¼ as bright. We could use the ma ...
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The Distances to the Stars

... The display shows the image obtained from the telescope, and a console with several control buttons and readouts. The readouts show the location of the telescope in the Solar System, the direction in which the telescope is pointing, and the Earth date in years and decimal fractions of a year. This t ...
October - Sonoma County Astronomical Society
October - Sonoma County Astronomical Society

... were represented by an eight-foot diameter arc-light pointing at us from a distance of 6 miles, then a planet orbiting around that star would be represented by a birthday candle just one foot to the side of the arc-light. Not the easiest object to see. In fact, with one possible exception, astronome ...
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Astronomical unit

The astronomical unit (symbol au, AU or ua) is a unit of length, roughly the distance from the Earth to the Sun. However, that distance varies as the Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 7011149597870700000♠149597870700 meters (about 150 million kilometers, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
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