Homework #7 - Solutions - Department of Physics and Astronomy
... Problem 11-1: Astronomers living on Mars would define their astronomical unit in terms of the orbit of Mars. If they defined parsec in the same manner as we do, how many Martian astronomical units would such a parsec contain? How many Earth astronomical units would equal a Martian parsec? How many E ...
... Problem 11-1: Astronomers living on Mars would define their astronomical unit in terms of the orbit of Mars. If they defined parsec in the same manner as we do, how many Martian astronomical units would such a parsec contain? How many Earth astronomical units would equal a Martian parsec? How many E ...
Chapter 3
... 1. The point in the sky directly overhead. 2. The circle dividing the sky into eastern and western halves. 3. Locate the North Celestial Pole precisely in the Bryan sky. 4. Over what point on Earth is the North Celestial Pole? 5. The Celestial Equator is a circle on the sky that crosses the horizon ...
... 1. The point in the sky directly overhead. 2. The circle dividing the sky into eastern and western halves. 3. Locate the North Celestial Pole precisely in the Bryan sky. 4. Over what point on Earth is the North Celestial Pole? 5. The Celestial Equator is a circle on the sky that crosses the horizon ...
Earth
... A. Scientists use kilometers on Earth to measure distance B. Astronomical Units (AU) measure distances between planets C. Neither are big enough to measure outside of our solar system, scientists use a unit based on the speed of light ...
... A. Scientists use kilometers on Earth to measure distance B. Astronomical Units (AU) measure distances between planets C. Neither are big enough to measure outside of our solar system, scientists use a unit based on the speed of light ...
Planetary Observations Lab Supplement
... Planetary Observations Lab Supplement Objective: To find the distance to Saturn and the diameter of its rings (For part D and the first part of E, you don’t have to align your telescope. Saturn is visible to the naked eye so you can manually move your telescope to view it) Part D: • Make a sketch of ...
... Planetary Observations Lab Supplement Objective: To find the distance to Saturn and the diameter of its rings (For part D and the first part of E, you don’t have to align your telescope. Saturn is visible to the naked eye so you can manually move your telescope to view it) Part D: • Make a sketch of ...
Sunlight Timeline
... The goal of this activity is to begin understanding the speed of light and how astronomers measure distance, not by miles, but by how far light travels in space in a unit of time. If light can travel 93,000,000 miles in 8 minutes and 20 seconds, imagine how far light can travel in one year, a light ...
... The goal of this activity is to begin understanding the speed of light and how astronomers measure distance, not by miles, but by how far light travels in space in a unit of time. If light can travel 93,000,000 miles in 8 minutes and 20 seconds, imagine how far light can travel in one year, a light ...
Sunlight Timeline
... The goal of this activity is to begin understanding the speed of light and how astronomers measure distance, not by miles, but by how far light travels in space in a unit of time. If light can travel 93,000,000 miles in 8 minutes and 20 seconds, imagine how far light can travel in one year, a light ...
... The goal of this activity is to begin understanding the speed of light and how astronomers measure distance, not by miles, but by how far light travels in space in a unit of time. If light can travel 93,000,000 miles in 8 minutes and 20 seconds, imagine how far light can travel in one year, a light ...
Poster
... We report on the development, calibration, and refinement of the SDSS-I Value Added Catalog (VAC) of stellar abundances, temperatures, and surface gravities. This catalog is based on observations of several hundred thousand stars obtained during the course of the original Sloan Digital Sky Survey, n ...
... We report on the development, calibration, and refinement of the SDSS-I Value Added Catalog (VAC) of stellar abundances, temperatures, and surface gravities. This catalog is based on observations of several hundred thousand stars obtained during the course of the original Sloan Digital Sky Survey, n ...
Sun, Star Types and Luminosity
... band of stars on the star diagram. b. Energy comes from nuclear fusion as they convert Hydrogen to Helium. c. The sun is a typical Main Sequence star. d. Most stars (about 90%) are Main Sequence Stars. e. For these stars, the hotter, the brighter ...
... band of stars on the star diagram. b. Energy comes from nuclear fusion as they convert Hydrogen to Helium. c. The sun is a typical Main Sequence star. d. Most stars (about 90%) are Main Sequence Stars. e. For these stars, the hotter, the brighter ...
Night Sky Checklist Year-Round Unaided Eye Astronomy
... lights. Satellites may change their brightness slowly or even in a pattern if they are tumbling, but that looks different from the navigation and anti-collision lights on an airplane. A light dome is the apparent dome of brightness seen over cities from a distance, caused by waste lighting going up ...
... lights. Satellites may change their brightness slowly or even in a pattern if they are tumbling, but that looks different from the navigation and anti-collision lights on an airplane. A light dome is the apparent dome of brightness seen over cities from a distance, caused by waste lighting going up ...
16SolMW - NMSU Astronomy
... Scale models • To work out a scale model, calculate the relative sizes of two objects by dividing the actual sizes, then multiply model size of one by the relative sizes • In scale model where Sun is a 1m diameter ball, Jupiter and Saturn are about 10cm diameter (softballs), Earth and Venus about 1 ...
... Scale models • To work out a scale model, calculate the relative sizes of two objects by dividing the actual sizes, then multiply model size of one by the relative sizes • In scale model where Sun is a 1m diameter ball, Jupiter and Saturn are about 10cm diameter (softballs), Earth and Venus about 1 ...
Homework 12 1. How would phases change if the Moon were the
... same size as Earth, but still had the same mass? Both total and partial solar eclipses would be more frequent because there is a greater chance that the larger Moon would block the Sun. The Earth will have more Moon to block, but a bigger target. Their will be more partial lunar eclipses and fewer t ...
... same size as Earth, but still had the same mass? Both total and partial solar eclipses would be more frequent because there is a greater chance that the larger Moon would block the Sun. The Earth will have more Moon to block, but a bigger target. Their will be more partial lunar eclipses and fewer t ...
Einstein on Kepler
... Copernicus had opened the eyes of the best thinkers to the idea that the apparent motions of the planets could most clearly be understood as orbits around the Sun, which itself is conceived as stationary. If a planet simply moved in a circle with the Sun at the center, it would have been conceptuall ...
... Copernicus had opened the eyes of the best thinkers to the idea that the apparent motions of the planets could most clearly be understood as orbits around the Sun, which itself is conceived as stationary. If a planet simply moved in a circle with the Sun at the center, it would have been conceptuall ...
Astronomy Honors Mid term Study Guide
... 18. Draw a graph showing a continuum with two emission lines. 19. Distinguish between continuous and absorption spectra. 20. What type of spectrum do most stars have – continuous, line, and absorption? 21. What is the Doppler effect? Give two examples using the visible spectrum 22. Compare Red shift ...
... 18. Draw a graph showing a continuum with two emission lines. 19. Distinguish between continuous and absorption spectra. 20. What type of spectrum do most stars have – continuous, line, and absorption? 21. What is the Doppler effect? Give two examples using the visible spectrum 22. Compare Red shift ...
Stars and Galaxies Misconceptions
... Students may think all stars look the same. Stars have different colors, difficult for many human eyes to detect. ...
... Students may think all stars look the same. Stars have different colors, difficult for many human eyes to detect. ...
A Short History of the Origin of Modern Astronomy What is a “Theory
... center of Earth (explains why planet appears to move faster through zodiac when closer to Earth equant: point offset from Earth about which a planet orbits ...
... center of Earth (explains why planet appears to move faster through zodiac when closer to Earth equant: point offset from Earth about which a planet orbits ...
Electromagnetic Waves - Flipped Out Science with Mrs. Thomas!
... Scientists use Doppler shift to determine whether distant stars and galaxies are moving towards us or away from us. In the late 1920s, astronomers Georges Lemaitre and Edwin Hubble separately proposed that all distant galaxies are moving away from Earth (red-shifted), and that the further away a gal ...
... Scientists use Doppler shift to determine whether distant stars and galaxies are moving towards us or away from us. In the late 1920s, astronomers Georges Lemaitre and Edwin Hubble separately proposed that all distant galaxies are moving away from Earth (red-shifted), and that the further away a gal ...
Grand Tour Worksheet - School District of La Crosse
... 4. What order of magnitude is a light year to an A.U.? 5. What is the average distance between stars in our galaxy? ...
... 4. What order of magnitude is a light year to an A.U.? 5. What is the average distance between stars in our galaxy? ...
Measuring Stellar Distances
... lifetimes serves as a consistency check. In general, star formation events in our galaxy make many more low mass stars than high mass ones. Since high mass stars have very short lifetimes, we would not expect to find many in a volume limited sample. Therefore any representative sample of stars shoul ...
... lifetimes serves as a consistency check. In general, star formation events in our galaxy make many more low mass stars than high mass ones. Since high mass stars have very short lifetimes, we would not expect to find many in a volume limited sample. Therefore any representative sample of stars shoul ...
Space Science Unit - World of Teaching
... • This chart uses surface temperature of the star and the absolute magnitude (brightness) of the star to help astronomers decide which phase of the star’s life cycle the star is in and other important information about the star. • Most stars are what we consider main sequence (including our sun). Th ...
... • This chart uses surface temperature of the star and the absolute magnitude (brightness) of the star to help astronomers decide which phase of the star’s life cycle the star is in and other important information about the star. • Most stars are what we consider main sequence (including our sun). Th ...
PHYS2330 Intermediate Mechanics Fall 2009 Midterm Exam #3
... Hawaii, showing the position of a star, at different times, orbiting the center of our Galaxy. Distance are given in AU, relative to an arbitrary origin, where 1 AU is the distance from the Earth to the Sun. The time it takes for one complete orbit is observed to be 16 years. Use this data to determ ...
... Hawaii, showing the position of a star, at different times, orbiting the center of our Galaxy. Distance are given in AU, relative to an arbitrary origin, where 1 AU is the distance from the Earth to the Sun. The time it takes for one complete orbit is observed to be 16 years. Use this data to determ ...
Earth in space
... in all directions at the speed of light (300 million m/sec), masses of gas cooled and condensed and… ...
... in all directions at the speed of light (300 million m/sec), masses of gas cooled and condensed and… ...
the interstellar medium - Howard University Physics and Astronomy
... • The Earth and the other planets of our solar system are believed to have all formed about the same time as the Sun itself, from the leftover portions of the cloud of gas and dust from which the Sun formed. • The conditions in the leftover material were a strong function of distance from the newly ...
... • The Earth and the other planets of our solar system are believed to have all formed about the same time as the Sun itself, from the leftover portions of the cloud of gas and dust from which the Sun formed. • The conditions in the leftover material were a strong function of distance from the newly ...
The Universe
... light can be planets, moons, comets, stars, but also complete star systems (galaxies). Our Solar system is part of a galaxy called the Milky Way. All the (individual) stars we can see on Earth all also part of the Milky Way. Previously we stated that our Solar system ends at the Oort cloud. The dist ...
... light can be planets, moons, comets, stars, but also complete star systems (galaxies). Our Solar system is part of a galaxy called the Milky Way. All the (individual) stars we can see on Earth all also part of the Milky Way. Previously we stated that our Solar system ends at the Oort cloud. The dist ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.