Quiz 1
... d) exploding stars near the center of our galaxy. 23. For the most distant objects shown in #22,23, the light we received left: a) before the Earth was formed. b) about thirty thousand years ago c) more than 20 billion years ago d) a few seconds before the image was taken. 24. Why do astronomers int ...
... d) exploding stars near the center of our galaxy. 23. For the most distant objects shown in #22,23, the light we received left: a) before the Earth was formed. b) about thirty thousand years ago c) more than 20 billion years ago d) a few seconds before the image was taken. 24. Why do astronomers int ...
ExpandUniv
... The relation is given by D=v/H ; D is distance, v is redshift velocity, and H is the “Hubble constant”. H is about 25 (km/s)/(million ly). The redshift is called “z”, where z = Dl/l ~ v/c. Remember, these are only apparent velocities, caused by the expansion of space. ...
... The relation is given by D=v/H ; D is distance, v is redshift velocity, and H is the “Hubble constant”. H is about 25 (km/s)/(million ly). The redshift is called “z”, where z = Dl/l ~ v/c. Remember, these are only apparent velocities, caused by the expansion of space. ...
MIDTERM #2 THURSDAY APRIL 16, 2015 AST142 1. Black hole
... 3. Dark matter in the Coma Cluster The Coma cluster is a nearby cluster of over 1000 galaxies. Zwicky measured the radius of the Coma cluster to be about a Mpc and a radial velocity dispersion of about vr2 ∼ 5 × 105 (km/s)2 . a. Estimate the total mass in the cluster using the virial theorem. b. Sup ...
... 3. Dark matter in the Coma Cluster The Coma cluster is a nearby cluster of over 1000 galaxies. Zwicky measured the radius of the Coma cluster to be about a Mpc and a radial velocity dispersion of about vr2 ∼ 5 × 105 (km/s)2 . a. Estimate the total mass in the cluster using the virial theorem. b. Sup ...
Expanding Universe
... • When we know the definite value of the Hubble constant, the future of the universe could be determined. • Hubble’s law has an apparent linearity our universe is uniformly expanding no matter which galaxy we are in, all of the other galaxies are moving away from us earth is not the center of ...
... • When we know the definite value of the Hubble constant, the future of the universe could be determined. • Hubble’s law has an apparent linearity our universe is uniformly expanding no matter which galaxy we are in, all of the other galaxies are moving away from us earth is not the center of ...
Decimal Prefixes and Multiples, Powers of Ten
... Try to fill in the empty boxes for all columns EXCEPT the partners box! ...
... Try to fill in the empty boxes for all columns EXCEPT the partners box! ...
The Search for Extraterrestrial Life
... • If we understand the needs of life that our planet currently provides for us, then we will be able to look for those things in other planets and possibly find life there. The hope is that we will find that we are not alone; we aren’t limited by this planet; and ultimately we learn more about life. ...
... • If we understand the needs of life that our planet currently provides for us, then we will be able to look for those things in other planets and possibly find life there. The hope is that we will find that we are not alone; we aren’t limited by this planet; and ultimately we learn more about life. ...
Star Game Cards
... What is the name of a dying star that has shrunk down to the size of a planet and no longer supports ...
... What is the name of a dying star that has shrunk down to the size of a planet and no longer supports ...
The electromagnetic spectrum
... We will talk about this more later in the course, when we talk about astronomical detectors. “Wave particle duality” is NOT intuitive. It is one of the strange consequences of what’s called “quantum mechanics”, invented by Einstein and others. ...
... We will talk about this more later in the course, when we talk about astronomical detectors. “Wave particle duality” is NOT intuitive. It is one of the strange consequences of what’s called “quantum mechanics”, invented by Einstein and others. ...
Document
... 24. Kepler’s 3rd law of planetary motion shows that the period (time it takes a body to revolve around the sun) is proportional to its distance to the sun. The relationship is p2 = a3 If a planet has a period of 4 years, what is it’s distance to the sun in AUs? p2 = a3 ...
... 24. Kepler’s 3rd law of planetary motion shows that the period (time it takes a body to revolve around the sun) is proportional to its distance to the sun. The relationship is p2 = a3 If a planet has a period of 4 years, what is it’s distance to the sun in AUs? p2 = a3 ...
Astronomy Test Objective 1: Origins of the Universe Multiple Choice
... Astronomers are concluding that monstrous black holes were not born that big, as once believed, but instead grew on a diet of gas and stars controlled by their host galaxies in the beginning years of the universe. An initial look at 30 galaxies indicates that black holes do not precede a galaxy’s bi ...
... Astronomers are concluding that monstrous black holes were not born that big, as once believed, but instead grew on a diet of gas and stars controlled by their host galaxies in the beginning years of the universe. An initial look at 30 galaxies indicates that black holes do not precede a galaxy’s bi ...
Galaxies - Center for Astrostatistics
... Tauri stars, open clusters, supernova remnants and X-ray binaries. The maps below show the disk at infrared, 21-cm hydrogen, CO molecules, and visible light. There is an intricate relationship between the interstellar medium and stars in the Galactic disk. Star are born in cold molecular clouds., or ...
... Tauri stars, open clusters, supernova remnants and X-ray binaries. The maps below show the disk at infrared, 21-cm hydrogen, CO molecules, and visible light. There is an intricate relationship between the interstellar medium and stars in the Galactic disk. Star are born in cold molecular clouds., or ...
Lecture 24: Quantum mechanics
... As we know, when we heat coal, initially it becomes red hot, and as it’s temperature increases further its color becomes almost white. The “spectrum” of light that is emitted by such body is shown below (Think of prism). ...
... As we know, when we heat coal, initially it becomes red hot, and as it’s temperature increases further its color becomes almost white. The “spectrum” of light that is emitted by such body is shown below (Think of prism). ...
Introduction - Jeopardy
... The distance from Earth to our Sun? This distance is called an Astronomical Unit. This is the unit of measurement used inside our Solar System ...
... The distance from Earth to our Sun? This distance is called an Astronomical Unit. This is the unit of measurement used inside our Solar System ...
Medical Laboratory Instrumentation 2010-2011 Third Year
... • blue glass transmits blue wavelengths of the visible spectrum but absorbs red and yellow wavelengths. • The range of wavelengths transmitted is broad compared with prisms and gratings which are also devices used to select a narrow wavelength range from a broad band polychromatic source. The transm ...
... • blue glass transmits blue wavelengths of the visible spectrum but absorbs red and yellow wavelengths. • The range of wavelengths transmitted is broad compared with prisms and gratings which are also devices used to select a narrow wavelength range from a broad band polychromatic source. The transm ...
Astronomy 100 Name(s):
... In this exercise, you will construct (with welding rods and Styrofoam balls) a model of nearby space including 50 or so of the nearest stars. Of course, you will need information on where to place the stars accurately; you will need a coordinate system to specify the position of an object in space. ...
... In this exercise, you will construct (with welding rods and Styrofoam balls) a model of nearby space including 50 or so of the nearest stars. Of course, you will need information on where to place the stars accurately; you will need a coordinate system to specify the position of an object in space. ...
b. Compare the similarities and differences of planets to the stars in
... of how this standard might be assessed. Please use these as an example when you are developing your own formative assessments. Remember formative assessment is to be given throughout the teaching of a standard to help you guide your instruction based on students needs. A good formative assessment sh ...
... of how this standard might be assessed. Please use these as an example when you are developing your own formative assessments. Remember formative assessment is to be given throughout the teaching of a standard to help you guide your instruction based on students needs. A good formative assessment sh ...
Stellar Evolution Reading Questions Integrated Science 2 Name
... 2. The birthplaces of stars are dark, cool interstellar ______________. These nebulae are made up of ____________ and gases. For some reason, some nebulae become dense enough to begin to _______________. A shock wave from an ___________________ of a nearby star may trigger the contraction. Once the ...
... 2. The birthplaces of stars are dark, cool interstellar ______________. These nebulae are made up of ____________ and gases. For some reason, some nebulae become dense enough to begin to _______________. A shock wave from an ___________________ of a nearby star may trigger the contraction. Once the ...
Constellations Test Review
... 14. Sara is stargazing and notices that the line between Polaris and Merak & Dubhe has moved from 1:00 to 12:00 on her imaginary clock in the sky. How many hours have passed? ...
... 14. Sara is stargazing and notices that the line between Polaris and Merak & Dubhe has moved from 1:00 to 12:00 on her imaginary clock in the sky. How many hours have passed? ...
Lab 21.1 Classifying Stars
... Plot the 36 closest stars on the graph paper and mark each star’s location with a small “x”. Plot the 20 brightest stars on the graph paper and mark each star’s location with a small “o”. Using the diagram on page 382 of the text, label the five groups (four of them are circled). The third group fro ...
... Plot the 36 closest stars on the graph paper and mark each star’s location with a small “x”. Plot the 20 brightest stars on the graph paper and mark each star’s location with a small “o”. Using the diagram on page 382 of the text, label the five groups (four of them are circled). The third group fro ...
The Universe
... –Our galaxy, The Milky Way, should produce one supernova every 25 years. –Supernovas cause a huge expanding cloud of debris ...
... –Our galaxy, The Milky Way, should produce one supernova every 25 years. –Supernovas cause a huge expanding cloud of debris ...
Astronomy 101
... What to Look for? Comets - Watch the web…. Asteroids – Go to Minor Planet Center Satellites – http://heavens-above.com Planets ...
... What to Look for? Comets - Watch the web…. Asteroids – Go to Minor Planet Center Satellites – http://heavens-above.com Planets ...
Document
... Create the integrated spectrum (due to target RGB star + stellar background) in a spaxel of 50mas x 50 mas a) decide characteristics of the target RGB star (magnitude, color, [Fe/H], [alpha/Fe], velocity) b) create the stellar background using a stellar population code developed by Joe Liske & E.Tol ...
... Create the integrated spectrum (due to target RGB star + stellar background) in a spaxel of 50mas x 50 mas a) decide characteristics of the target RGB star (magnitude, color, [Fe/H], [alpha/Fe], velocity) b) create the stellar background using a stellar population code developed by Joe Liske & E.Tol ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.