ISP 205 Review Questions, Week 13
... be related to the velocity of recession of the galaxy through the formula Δλ/λ = v/c. In this formula, λ is the "rest" wavelength of an absorption line, Δλ is the amount by which the Doppler effect has changed its wavelength, v is the velocity of the galaxy, and c is the speed of light (300,000 km/s ...
... be related to the velocity of recession of the galaxy through the formula Δλ/λ = v/c. In this formula, λ is the "rest" wavelength of an absorption line, Δλ is the amount by which the Doppler effect has changed its wavelength, v is the velocity of the galaxy, and c is the speed of light (300,000 km/s ...
May 2014
... Still we hold out the possibility of life in Europa or Enceladus. Frank Drake came up with an equation, now known as “Drake's Equation” for how many intelligent civilizations are currently out there. The Drake Equation: ...
... Still we hold out the possibility of life in Europa or Enceladus. Frank Drake came up with an equation, now known as “Drake's Equation” for how many intelligent civilizations are currently out there. The Drake Equation: ...
The Sun and Beyond - Valhalla High School
... Our universe is 25 billion light years in diameter and 13-15 billion years old closest star to us is Proxima Centauri- 4.22 light years away ...
... Our universe is 25 billion light years in diameter and 13-15 billion years old closest star to us is Proxima Centauri- 4.22 light years away ...
Notes on White Dwarfs and Neutron Stars.
... something must be wrong. The problem is not hard to find. For our white dwarf models, we assumed the electrons were an ideal (i.e., non-interacting) gas; that was justified. But at densities of ρ ∼ 1015 g cm−3 , neutrons are not an ideal gas. These are the densities we find within an atomic nucleus, ...
... something must be wrong. The problem is not hard to find. For our white dwarf models, we assumed the electrons were an ideal (i.e., non-interacting) gas; that was justified. But at densities of ρ ∼ 1015 g cm−3 , neutrons are not an ideal gas. These are the densities we find within an atomic nucleus, ...
Parallax, Apparent Magnitude and Absolute Magnitude
... background shifts. (Try this out for yourself by looking at some nearby object and covering first your left and then right eye – note how its position shifts against the distant background) We can see this parallax shift when we compare the positions on the sky of a nearby star observed six months a ...
... background shifts. (Try this out for yourself by looking at some nearby object and covering first your left and then right eye – note how its position shifts against the distant background) We can see this parallax shift when we compare the positions on the sky of a nearby star observed six months a ...
Solutions
... 1. In class, I told you that if the Sun were a grain of sand and Proxima Centauri (the closest star to the Sun) were another grain of sand, they would be something 20 miles apart. Create a similar analogy for the Milky Way and Andromeda galaxies, only using frisbees or dinner plates to represent the ...
... 1. In class, I told you that if the Sun were a grain of sand and Proxima Centauri (the closest star to the Sun) were another grain of sand, they would be something 20 miles apart. Create a similar analogy for the Milky Way and Andromeda galaxies, only using frisbees or dinner plates to represent the ...
Navigating by the Stars
... The orbits of the planets are ellipses with the Sun at one of the foci. This is now called Kepler's First Law or The Law of Ellipses. What is an ellipse? Glad you asked. An ellipse is a closed, curved shape that is defined by two foci. An ellipse is a like a flattened circle. In fact, if both of th ...
... The orbits of the planets are ellipses with the Sun at one of the foci. This is now called Kepler's First Law or The Law of Ellipses. What is an ellipse? Glad you asked. An ellipse is a closed, curved shape that is defined by two foci. An ellipse is a like a flattened circle. In fact, if both of th ...
ASTR-1020: Astronomy II Course Lecture Notes - Faculty
... multiply. And the rest is history! 4. The is also some thought in the scientific community that the building blocks of life may have been deposited on Earth from space since amino acids are fairly common in meteorites and the interstellar medium. This hypothesis is referred to as panspermia. C. The ...
... multiply. And the rest is history! 4. The is also some thought in the scientific community that the building blocks of life may have been deposited on Earth from space since amino acids are fairly common in meteorites and the interstellar medium. This hypothesis is referred to as panspermia. C. The ...
Slides from the fourth lecture
... and clues on how life developed. Most of the biomass on the Earth is still bacterial, and they are best at filling ecological niches. Extreme life is found in amazing places. There is some indication that life could have started at deep undersea volcanic hydrothermal vents. ...
... and clues on how life developed. Most of the biomass on the Earth is still bacterial, and they are best at filling ecological niches. Extreme life is found in amazing places. There is some indication that life could have started at deep undersea volcanic hydrothermal vents. ...
Ch. 28 Test Topics
... planet, solar system, star, star cluster, galaxy, galaxy cluster, super cluster -Know a local group of galaxies are galaxies that are in the close by each other and in our galaxy cluster. The other galaxies in our local group that we viewed in class were Large Magellanic Cloud, Small Magellanic Clou ...
... planet, solar system, star, star cluster, galaxy, galaxy cluster, super cluster -Know a local group of galaxies are galaxies that are in the close by each other and in our galaxy cluster. The other galaxies in our local group that we viewed in class were Large Magellanic Cloud, Small Magellanic Clou ...
Second
... 3. These two forces play a key role in stellar structure – for the star to be stable they must be in balance. 4. Stars radiate into space. For stability they need to also . It follows that sometime stars run out of equilibrium and change, or evolve. 5. To describe stars (to make a model) we need to ...
... 3. These two forces play a key role in stellar structure – for the star to be stable they must be in balance. 4. Stars radiate into space. For stability they need to also . It follows that sometime stars run out of equilibrium and change, or evolve. 5. To describe stars (to make a model) we need to ...
Why Is the Sun a Star
... across vast light years of distance, remember that each star is another “Sun” and that some are much larger and some much smaller. And many, if not most of those other “Suns” have planets of their own and so they are “solar” systems too. Our Sun is comfortably right in the middle of the range (it’s ...
... across vast light years of distance, remember that each star is another “Sun” and that some are much larger and some much smaller. And many, if not most of those other “Suns” have planets of their own and so they are “solar” systems too. Our Sun is comfortably right in the middle of the range (it’s ...
Chapter27
... having such a limited discussion of life in the Universe was that I thought the subject was still very speculative. For example, at that time, only a little more than 10 years ago, we didn’t yet have any evidence for planetary systems orbiting ordinary stars other than the Sun. A lot has happened in ...
... having such a limited discussion of life in the Universe was that I thought the subject was still very speculative. For example, at that time, only a little more than 10 years ago, we didn’t yet have any evidence for planetary systems orbiting ordinary stars other than the Sun. A lot has happened in ...
Astronomy 101 Section 4
... educational lectures and activities to talk to someone when something isn’t right ...
... educational lectures and activities to talk to someone when something isn’t right ...
Microsoft Word 97
... 1. When did the Milky Way begin? _____________________________________________________ 2. Where does its name come from? ___________________________________________________ 3. What do we see when we look in the sky? _____________________________________________ 4. What does our galaxy look like from ...
... 1. When did the Milky Way begin? _____________________________________________________ 2. Where does its name come from? ___________________________________________________ 3. What do we see when we look in the sky? _____________________________________________ 4. What does our galaxy look like from ...
Watch the episode titled “The Milky Way” from the series “The
... About how many times has our solar system been orbited around the Milky Way? Where is our galaxy headed? ...
... About how many times has our solar system been orbited around the Milky Way? Where is our galaxy headed? ...
OUR EARTH AND UNIVERSE --- WHERE WE LIVE (by Charles
... million miles for earth. Our moon was most likely formed when a giant asteroid hit the earth and broke off a portion of the earth. Eventually, these pieces of earth were pulled together by gravity and also pulled into a rotating orbit by the gravitational force of the earth. Our sun is but one of th ...
... million miles for earth. Our moon was most likely formed when a giant asteroid hit the earth and broke off a portion of the earth. Eventually, these pieces of earth were pulled together by gravity and also pulled into a rotating orbit by the gravitational force of the earth. Our sun is but one of th ...
ppt of lecture - July Lectures
... In others they are larger than our world, And in others more numerous. In some parts there are more worlds, In others fewer (…); In some parts they are rising, in others falling. There are some worlds devoid of living creatures Or plants or any moisture. Democritus 460-370 BC ...
... In others they are larger than our world, And in others more numerous. In some parts there are more worlds, In others fewer (…); In some parts they are rising, in others falling. There are some worlds devoid of living creatures Or plants or any moisture. Democritus 460-370 BC ...
Hypothesis vs. Theory ~The Big Bang
... DOWN. Humans today are not used to looking UP, we are not used to observing the sky – it appears to be of little use – and city living with its extensive light pollution often prevents us from seeing, and hence exploring, the “heavens”. Most of us have some awareness that we are part of a system of ...
... DOWN. Humans today are not used to looking UP, we are not used to observing the sky – it appears to be of little use – and city living with its extensive light pollution often prevents us from seeing, and hence exploring, the “heavens”. Most of us have some awareness that we are part of a system of ...
Variable Stars: Pulsation, Evolution and applications to Cosmology
... Sun is a non-radial oscillator. Modes with periods between 3 an d8 minutes – five minute oscillations are p modes: l going from 0 to 1000. Modes with longer periods – about 160 minutes could be g modes: l ~1-4. Comparison of observed and theoretical frequencies can be used to calibrate solar models: ...
... Sun is a non-radial oscillator. Modes with periods between 3 an d8 minutes – five minute oscillations are p modes: l going from 0 to 1000. Modes with longer periods – about 160 minutes could be g modes: l ~1-4. Comparison of observed and theoretical frequencies can be used to calibrate solar models: ...
File - e - portfolio Terene
... It is hypothesis of arguing that the beginning of complex multicellular life requires improbable combination of astrophysical number of events and situations. 2. List and briefly explain 3 important features of the Rare Earth Hypothesis (features are ideas, concepts or facts that support the hypothe ...
... It is hypothesis of arguing that the beginning of complex multicellular life requires improbable combination of astrophysical number of events and situations. 2. List and briefly explain 3 important features of the Rare Earth Hypothesis (features are ideas, concepts or facts that support the hypothe ...
Question 1
... Question 4 The habitable zone is the area where a) temperatures on a planet are reasonable. b) terrestrial planets can form around a star. c) terrestrial planets could have liquid water on their surfaces. d) liquid water can condense into rain in the atmosphere. e) Sun-like stars can exist in the M ...
... Question 4 The habitable zone is the area where a) temperatures on a planet are reasonable. b) terrestrial planets can form around a star. c) terrestrial planets could have liquid water on their surfaces. d) liquid water can condense into rain in the atmosphere. e) Sun-like stars can exist in the M ...
Answer ALL questions from SECTION A and TWO questions from
... 4. List the physical processes that give rise to the continuous opacity in stars. ...
... 4. List the physical processes that give rise to the continuous opacity in stars. ...
Chapter 7 Review Answers
... at the beginning of the universe (BBT) went. That extra radiation should be present throughout the universe if the BBT was to be true. We believe now that the cosmic background radiation is that extra energy/radiation. The CBR found fits with the predictions consistent with the BBT, supporting the B ...
... at the beginning of the universe (BBT) went. That extra radiation should be present throughout the universe if the BBT was to be true. We believe now that the cosmic background radiation is that extra energy/radiation. The CBR found fits with the predictions consistent with the BBT, supporting the B ...