Stars, Galaxies & Universe
... • The universe may continue to expand. • Gravity may pull the universe back ...
... • The universe may continue to expand. • Gravity may pull the universe back ...
Solutions to problem set 5
... θ = arctan(dCJ /dJE ) where dCJ is the distance from Callisto to Jupiter and dJE is the distance from Jupiter to Earth. We just calculated dCJ = 0.012 AU, and part (i) yields the range of possible dJE , between 4.2 and 6.2 AU. The angle will be greatest when dJE is smallest, so: θ = arctan(0.012/4.2 ...
... θ = arctan(dCJ /dJE ) where dCJ is the distance from Callisto to Jupiter and dJE is the distance from Jupiter to Earth. We just calculated dCJ = 0.012 AU, and part (i) yields the range of possible dJE , between 4.2 and 6.2 AU. The angle will be greatest when dJE is smallest, so: θ = arctan(0.012/4.2 ...
Size Color and Temperature
... You can see how temperature affects color by heating up metal. For example, if you turn on a toaster, the metal coils inside will start to glow a dull red. As they get hotter, the coils will turn a brighter orange. The illustration on page 463 shows changes in the color of a metal bar as it heats up ...
... You can see how temperature affects color by heating up metal. For example, if you turn on a toaster, the metal coils inside will start to glow a dull red. As they get hotter, the coils will turn a brighter orange. The illustration on page 463 shows changes in the color of a metal bar as it heats up ...
Study Guide for Stars and Galaxies Quiz ANSWER KEY
... 3. What is the name of the galaxy that our solar system is in? What type of galaxy is it? Milky Way spiral galaxy 4. Are there planets around other stars? Yes. The recently discovered Kepler 22b is a good example. 5. Place the following in order from smallest to largest: galaxy, solar system ...
... 3. What is the name of the galaxy that our solar system is in? What type of galaxy is it? Milky Way spiral galaxy 4. Are there planets around other stars? Yes. The recently discovered Kepler 22b is a good example. 5. Place the following in order from smallest to largest: galaxy, solar system ...
Topic 3 Earth in the Universe
... • The star light DOES NOT appear red or blue (it still appears as white light from the star) • The “bar code” for each element either shifts to the shorter wavelength blue end of the spectrum or to the longer wavelength red end of the spectrum ...
... • The star light DOES NOT appear red or blue (it still appears as white light from the star) • The “bar code” for each element either shifts to the shorter wavelength blue end of the spectrum or to the longer wavelength red end of the spectrum ...
Dim Stars - granthamkuehl
... In our study of Stars The students will be able to Determine color, temp., brightness and Size of a star And show what they learned by Interpreting the HR Diagram ...
... In our study of Stars The students will be able to Determine color, temp., brightness and Size of a star And show what they learned by Interpreting the HR Diagram ...
Intro Lecture: Stars - University of Redlands
... Mizar, 88 light years distant, is the middle star in the handle of the Big Dipper. It was the first binary star system to be imaged with a telescope. Spectroscopic observations show periodic Doppler shifts in the spectra of Mizar A and B, indicating that they are each binary stars. But they were too ...
... Mizar, 88 light years distant, is the middle star in the handle of the Big Dipper. It was the first binary star system to be imaged with a telescope. Spectroscopic observations show periodic Doppler shifts in the spectra of Mizar A and B, indicating that they are each binary stars. But they were too ...
Sky, Celestial Sphere and Constellations
... Stars do actually move in the sky, but at a very slow rate, not noticeable to eye in a life time or even over a few centuries. However over many thousands of years, there could be obvious changes. ...
... Stars do actually move in the sky, but at a very slow rate, not noticeable to eye in a life time or even over a few centuries. However over many thousands of years, there could be obvious changes. ...
Physical Attributes of Stars
... c. Explain why the pattern of stars in a constellation stays the same, but a planet can be seen in different locations at different times. d. Identify how technology is used to observe distant objects in the sky. S4E2. Students will model the position and motion of the earth in the solar system and ...
... c. Explain why the pattern of stars in a constellation stays the same, but a planet can be seen in different locations at different times. d. Identify how technology is used to observe distant objects in the sky. S4E2. Students will model the position and motion of the earth in the solar system and ...
122final10
... There is no evidence of their existence They only form when two stars collide with one another none of the above are characteristics. ...
... There is no evidence of their existence They only form when two stars collide with one another none of the above are characteristics. ...
The Life of a Star
... star emerges. This tiny object, about 20 km in diameter, is all that’s left of the massive super giant. It is so dense that a teaspoon of its material would weigh one hundred million tonnes. Stars larger than three solar masses also explode in a supernova, but the remaining material collapses in on ...
... star emerges. This tiny object, about 20 km in diameter, is all that’s left of the massive super giant. It is so dense that a teaspoon of its material would weigh one hundred million tonnes. Stars larger than three solar masses also explode in a supernova, but the remaining material collapses in on ...
notes
... from our Sun (T = 5800 K) • We moved it to an M-type star (T = 3000 K) and placed it at the same distance that it currently is from our Sun • In each of these cases, where should we place the Earth to prevent these effects? ...
... from our Sun (T = 5800 K) • We moved it to an M-type star (T = 3000 K) and placed it at the same distance that it currently is from our Sun • In each of these cases, where should we place the Earth to prevent these effects? ...
Our Solar System
... 1. Universe- contains everything that may or may not exist in space 2. Galaxy- system of stars held together by gravity. 3 types: Spiral, Elliptical, and Irregular. Ex: Milky Way 3. Nebula= interstellar cloud of gas 4. Star- self luminous sphere of gas. Ex: sun 5. Planet- celestial object moving in ...
... 1. Universe- contains everything that may or may not exist in space 2. Galaxy- system of stars held together by gravity. 3 types: Spiral, Elliptical, and Irregular. Ex: Milky Way 3. Nebula= interstellar cloud of gas 4. Star- self luminous sphere of gas. Ex: sun 5. Planet- celestial object moving in ...
The Universe - staff.harrisonburg.k12.va
... • Shaped like a football. • “Clean” galaxies: Very little dust and gas. ...
... • Shaped like a football. • “Clean” galaxies: Very little dust and gas. ...
Astronomical Ideas – Math Review practice problems 1. The radius
... 1. The radius of the Sun is 100 times the Earth’s radius. What is the volume of the Sun, relative to the volume of the Earth? 2. How many days does it take to travel 9.46 * 1012 km at a speed of 3 * 108 m/sec? 3. If you replaced the Earth with a planet of the same mass but three times larger in radi ...
... 1. The radius of the Sun is 100 times the Earth’s radius. What is the volume of the Sun, relative to the volume of the Earth? 2. How many days does it take to travel 9.46 * 1012 km at a speed of 3 * 108 m/sec? 3. If you replaced the Earth with a planet of the same mass but three times larger in radi ...
LT 9: I can describe how a protostar becomes a star.
... – Pulsating stars: change in brightness as they expand (cool, dim) and contract (hot, bright) – Cepheid variables: the longer their cycle is the larger their absolute magnitude is – Eclipsing binary: 2 stars of unequal brightness that revolve around each other and appear to change brightness Pulsa ...
... – Pulsating stars: change in brightness as they expand (cool, dim) and contract (hot, bright) – Cepheid variables: the longer their cycle is the larger their absolute magnitude is – Eclipsing binary: 2 stars of unequal brightness that revolve around each other and appear to change brightness Pulsa ...
Astr 40 Final Exam Review ()
... 46. The event that marks the end of a star's evolutionary life before becoming a white dwarf is a planetary nebula.. 47. A black hole is best defined as any object which is smaller than its event horizon. 48. Isolated black holes slowly evaporate because they slowly leak mass via virtual particles t ...
... 46. The event that marks the end of a star's evolutionary life before becoming a white dwarf is a planetary nebula.. 47. A black hole is best defined as any object which is smaller than its event horizon. 48. Isolated black holes slowly evaporate because they slowly leak mass via virtual particles t ...
Stars and their Properties
... o The Moving Cluster Method – Stars converge to a central point if you are moving backwards in space at very high speed – Used to 1,000 parsecs Sun is not in a star cluster Convergent Point – Point at which the cluster of stars are converging (coming together) Convergent point can be outside t ...
... o The Moving Cluster Method – Stars converge to a central point if you are moving backwards in space at very high speed – Used to 1,000 parsecs Sun is not in a star cluster Convergent Point – Point at which the cluster of stars are converging (coming together) Convergent point can be outside t ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.