Chapter 1 - Colorado Mesa University
... • 1 km/s ~ 2200 miles/hour • The earth is moving (at the equator) ~ .5km/s • We orbit the sun at ~30 km/s The Sun orbits the center of the Milky Way at ~220 km/s (or 100,000 km/hr) • The Milky Way is moving ~552 km/s ...
... • 1 km/s ~ 2200 miles/hour • The earth is moving (at the equator) ~ .5km/s • We orbit the sun at ~30 km/s The Sun orbits the center of the Milky Way at ~220 km/s (or 100,000 km/hr) • The Milky Way is moving ~552 km/s ...
What Is a Light-year?
... difficult to understand and use in calculations. For (6) reason, • astronomers use a different (7) of (8) when they talk about distances between stars. In one year, light travels 9.5 trillion km. If there were a star 9.5 (9) km. from Earth, it would take one year for its light to reach us. By the ti ...
... difficult to understand and use in calculations. For (6) reason, • astronomers use a different (7) of (8) when they talk about distances between stars. In one year, light travels 9.5 trillion km. If there were a star 9.5 (9) km. from Earth, it would take one year for its light to reach us. By the ti ...
Solutions to problem set 5
... Compare to CMBR: TCMBR ∼ 3 K. This is about 100 times cooler than you are, so since peak wavelength is inversely proportional to temperature the CMBR peaks at about 968 microns wavelenth (0.968 mm). ...
... Compare to CMBR: TCMBR ∼ 3 K. This is about 100 times cooler than you are, so since peak wavelength is inversely proportional to temperature the CMBR peaks at about 968 microns wavelenth (0.968 mm). ...
Time traveller – Activity
... communicating over the large distances involved in astronomy. It takes time for light to reach us from a distant star so when we look at the night sky, we are looking into the past. For example, we see the star Sirius as it was 9 years ago. Since radio signals also travel at the speed of light, this ...
... communicating over the large distances involved in astronomy. It takes time for light to reach us from a distant star so when we look at the night sky, we are looking into the past. For example, we see the star Sirius as it was 9 years ago. Since radio signals also travel at the speed of light, this ...
Q: Do other planets have summer? A:
... with respect to the plane of its orbit around the Sun. To elaborate on point number two, if you drew a line through the Earth’s poles and think of Earth’s orbit as a disk like a DVD, the line would make an angle with the disk of 23.5 degrees. This line always points in the same direction, towards th ...
... with respect to the plane of its orbit around the Sun. To elaborate on point number two, if you drew a line through the Earth’s poles and think of Earth’s orbit as a disk like a DVD, the line would make an angle with the disk of 23.5 degrees. This line always points in the same direction, towards th ...
File - Mrs. MacGowan 6-2
... Our Solar System also contains asteroids, comets, moons, dust, gas and some minor planets. They are 140 moons that orbit the eight planets in the solar system. The moons rather then the planets don’t orbit the sun they about the planet they are nearest too. The planet that used to be considered a pl ...
... Our Solar System also contains asteroids, comets, moons, dust, gas and some minor planets. They are 140 moons that orbit the eight planets in the solar system. The moons rather then the planets don’t orbit the sun they about the planet they are nearest too. The planet that used to be considered a pl ...
The Solar System
... Pluto – Does not fit the current definition of a “planet”. Pluto is a small icy world clearly different from either the Jovian and Terrestrial worlds. Since its discovery by Clyde Tombaugh in 1930, it has been a unique mystery mostly because of its great distance from the Earth and is peculiar orbit ...
... Pluto – Does not fit the current definition of a “planet”. Pluto is a small icy world clearly different from either the Jovian and Terrestrial worlds. Since its discovery by Clyde Tombaugh in 1930, it has been a unique mystery mostly because of its great distance from the Earth and is peculiar orbit ...
Video review
... 7. Particles within the collapsing solar nebula disk begin to collide and collect (accrete) from the _____________________ force. 8. Gravity takes over the formation of clumps in the early solar system when they reach the approximate size of ____________________. 9. Bodies in the solar system greate ...
... 7. Particles within the collapsing solar nebula disk begin to collide and collect (accrete) from the _____________________ force. 8. Gravity takes over the formation of clumps in the early solar system when they reach the approximate size of ____________________. 9. Bodies in the solar system greate ...
Chapter 28 Notes
... nuclear fusion (sun) c) Remaining material forms planetesimals and then planets ...
... nuclear fusion (sun) c) Remaining material forms planetesimals and then planets ...
MIT
... • Comets - small bodies in the Solar System that (at least occasionally) exhibit a coma (or atmosphere) and/or a tail • Meteorites - small extraterrestrial body that reaches the Earth's surface ...
... • Comets - small bodies in the Solar System that (at least occasionally) exhibit a coma (or atmosphere) and/or a tail • Meteorites - small extraterrestrial body that reaches the Earth's surface ...
Name: Date: Period: ______ Unit 9
... 3. How did the land and atmosphere of Earth form? 4. How do the theories of Aristotle and Copernicus differ? 5. What did Ptolemy propose about the solar system? 6. What is a protoplanet? 7. What is differentiation? What part(s) of Earth did this create? 8. What is Kepler’s first law? 9. What is outg ...
... 3. How did the land and atmosphere of Earth form? 4. How do the theories of Aristotle and Copernicus differ? 5. What did Ptolemy propose about the solar system? 6. What is a protoplanet? 7. What is differentiation? What part(s) of Earth did this create? 8. What is Kepler’s first law? 9. What is outg ...
Presentation 2
... • Celestial north pole stays still (North star aka Polaris) • Stars appear to move in counterclockwise fashion. ...
... • Celestial north pole stays still (North star aka Polaris) • Stars appear to move in counterclockwise fashion. ...
PPT
... must be at center of solar system (but recognized that other planets must go around the Sun) • Hired Johannes Kepler, who later used these detailed observations to discover the truth about planetary ...
... must be at center of solar system (but recognized that other planets must go around the Sun) • Hired Johannes Kepler, who later used these detailed observations to discover the truth about planetary ...
Universal Gravitation
... of the work of early scientists (Galileo, Kepler, Newton, etc..) we know that planets, stars, comets and other bodies follow the same laws as objects do on Earth. ...
... of the work of early scientists (Galileo, Kepler, Newton, etc..) we know that planets, stars, comets and other bodies follow the same laws as objects do on Earth. ...
The - Pennsylvania State University
... Other challenging theories of the time • Johannes Kepler (Assistant of Brahe) – Took both Copernicus’ theory and Brahe’s observations and used them to add the the theories of heliocentricity • Earth must be a moving object • Earth speeds up the closer it is to the sun • He discovered this from his ...
... Other challenging theories of the time • Johannes Kepler (Assistant of Brahe) – Took both Copernicus’ theory and Brahe’s observations and used them to add the the theories of heliocentricity • Earth must be a moving object • Earth speeds up the closer it is to the sun • He discovered this from his ...
Reasons for the Seasons
... away from the Sun, resulting in a low solar angle, a shorter day, and receiving less direct sunlight. During the summer, the hemisphere is tilted toward the Sun, resulting in a high solar angle, receiving more direct light, and therefore a longer amount of daylight. Distance to the Sun has no affect ...
... away from the Sun, resulting in a low solar angle, a shorter day, and receiving less direct sunlight. During the summer, the hemisphere is tilted toward the Sun, resulting in a high solar angle, receiving more direct light, and therefore a longer amount of daylight. Distance to the Sun has no affect ...
1. Compute the deflection angle of a star whose light... limb of the Sun. Also compute the deflection angle of...
... 1. Compute the deflection angle of a star whose light just grazes the limb of the Sun. Also compute the deflection angle of a star whose light just grazes the limb of a 1.4M neutron star, if the neutron star was at the same distance from the Earth as the Sun. State assumptions. 2. Use the Plummer p ...
... 1. Compute the deflection angle of a star whose light just grazes the limb of the Sun. Also compute the deflection angle of a star whose light just grazes the limb of a 1.4M neutron star, if the neutron star was at the same distance from the Earth as the Sun. State assumptions. 2. Use the Plummer p ...
Astronomy Unit Test – Chapter 21
... 7. Create a flow-map that shows the organization of the universe, from smallest to largest unit? 8. The H-R diagram is based upon which 2 criteria? 9. The tilt of Earth on its axis affects __________________. 10. The longest day of the year occurs on the _________________ _____________________. 11. ...
... 7. Create a flow-map that shows the organization of the universe, from smallest to largest unit? 8. The H-R diagram is based upon which 2 criteria? 9. The tilt of Earth on its axis affects __________________. 10. The longest day of the year occurs on the _________________ _____________________. 11. ...
Some Physics of the Kepler Laws and Orbits Kepler`s First Law
... where L is the angular momentum and v is the radial velocity. As mentioned above, this force is attractive. But why doesn’t the Earth collapse into the Sun as one may wonder. This is due to the angular momentum. What the angular momentum does is it creates a barrier that prevents the Earth from coll ...
... where L is the angular momentum and v is the radial velocity. As mentioned above, this force is attractive. But why doesn’t the Earth collapse into the Sun as one may wonder. This is due to the angular momentum. What the angular momentum does is it creates a barrier that prevents the Earth from coll ...