Internet Space Scavenger Hunt
... 28.What determines how large a star will become? The amount of matter that is available for star formation in the nebula determines how large a star becomes. 29.Will a star’s lifecycle be shorter or longer if its mass is greater? Shorter 30.Black holes have an enormous ________________ pull. Gravita ...
... 28.What determines how large a star will become? The amount of matter that is available for star formation in the nebula determines how large a star becomes. 29.Will a star’s lifecycle be shorter or longer if its mass is greater? Shorter 30.Black holes have an enormous ________________ pull. Gravita ...
Distances to Stars Scales of Size and Time
... New distance scale: 1 light year (ly) = Distance traveled by light in 1 year = 63,000 AU = 1013 km = 10,000,000,000,000 km (= 1 + 13 zeros) = 10 trillion km Approx. 17 light years ...
... New distance scale: 1 light year (ly) = Distance traveled by light in 1 year = 63,000 AU = 1013 km = 10,000,000,000,000 km (= 1 + 13 zeros) = 10 trillion km Approx. 17 light years ...
Astronomers use astronomical units(AU) to measure distances
... • The Sun’s gravitational pull keeps the planets revolving in orbit around it – Gravitational pull: the force of attraction that two masses have for each other – Orbit: the circular or elliptical path of one object around another Demo ...
... • The Sun’s gravitational pull keeps the planets revolving in orbit around it – Gravitational pull: the force of attraction that two masses have for each other – Orbit: the circular or elliptical path of one object around another Demo ...
ph607-14-a3uni - University of Kent
... 2. The mass outflow is given by 2L/vjet2 where L is the power. This yields 2 1039/1016 kg/s = 2 1023 kg/s. One solar mass per year is roughly 2 1030/ 3 107 kg/s = 6.7 1022 kg/s. Therefore, about 3 solar masses per year must be ejected ...
... 2. The mass outflow is given by 2L/vjet2 where L is the power. This yields 2 1039/1016 kg/s = 2 1023 kg/s. One solar mass per year is roughly 2 1030/ 3 107 kg/s = 6.7 1022 kg/s. Therefore, about 3 solar masses per year must be ejected ...
Solutions to test #2 taken on Monday
... b) ____billions____ Current age of the Sun in years. c) ___millions_____ Length of time a star like the Sun spends as a Red Giant. d) ___billions_____ Number of stars in the Milky Way. e) ___one_____ Number of stars in the Solar System. f) ___millions_____ Temperature in the Sun’s core. g) ___one___ ...
... b) ____billions____ Current age of the Sun in years. c) ___millions_____ Length of time a star like the Sun spends as a Red Giant. d) ___billions_____ Number of stars in the Milky Way. e) ___one_____ Number of stars in the Solar System. f) ___millions_____ Temperature in the Sun’s core. g) ___one___ ...
Version0 Answers
... A. As the temperature of the Universe dropped, the particle creation rate slowed. B. Matter and energy are related, according to Einstein’s E = mc2 . C. For every particle created there was also an antiparticle created of the same mass. D. For unknown reasons, there happened to be slightly more matt ...
... A. As the temperature of the Universe dropped, the particle creation rate slowed. B. Matter and energy are related, according to Einstein’s E = mc2 . C. For every particle created there was also an antiparticle created of the same mass. D. For unknown reasons, there happened to be slightly more matt ...
AST 101 INTRODUCTION TO ASTRONOMY SPRING 2008
... B. After the probe passes through the event horizon you would see its image frozen, stuck at the place and time it crossed over C. The lights on the probe would appear to change color, becoming redder D. The probe’s clock would appear to slow down E. Once inside the event horizon, you would see the ...
... B. After the probe passes through the event horizon you would see its image frozen, stuck at the place and time it crossed over C. The lights on the probe would appear to change color, becoming redder D. The probe’s clock would appear to slow down E. Once inside the event horizon, you would see the ...
Monday Sept 14
... the planets, moons, and other objects and materials that orbit that star. Until very recently, there was only one known planetary system Even though many People suspected that most stars had planets orbiting them, we had no scientific evidence to support this suspicion. The one planetary science we ...
... the planets, moons, and other objects and materials that orbit that star. Until very recently, there was only one known planetary system Even though many People suspected that most stars had planets orbiting them, we had no scientific evidence to support this suspicion. The one planetary science we ...
Stars and The Universe
... stretched out behind the object. •When a star moves toward us, we see shortened wavelengths. This is called a “blue shift,” because the blue end of the light spectrum has shorter wavelengths. ...
... stretched out behind the object. •When a star moves toward us, we see shortened wavelengths. This is called a “blue shift,” because the blue end of the light spectrum has shorter wavelengths. ...
The Universe Constellations
... 13. What percent of stars belong to a multiple star system? 14. The constellation of Centaurus in the Southern Hemisphere contains Omega Centauri, the largest globular star cluster in the Milky Way Galaxy. Describe how globular clusters may have formed. ...
... 13. What percent of stars belong to a multiple star system? 14. The constellation of Centaurus in the Southern Hemisphere contains Omega Centauri, the largest globular star cluster in the Milky Way Galaxy. Describe how globular clusters may have formed. ...
Where Stars Are Born
... 1. What is the composition of interstellar gas? Of interstellar dust? 2. If space is a near-perfect vacuum, how can there be enough dust in it to block light? 3. What is an emission nebula? 4. How is interstellar dust detected? 5. Why is dust found in the neighborhood of some stars (as in the Pleiad ...
... 1. What is the composition of interstellar gas? Of interstellar dust? 2. If space is a near-perfect vacuum, how can there be enough dust in it to block light? 3. What is an emission nebula? 4. How is interstellar dust detected? 5. Why is dust found in the neighborhood of some stars (as in the Pleiad ...
Astronomy 115 Homework Set #1 – Due: Thursday, Feb
... A ball is attached to a string and is swung in a circular path in a horizontal plane, as illustrated below. At point P, the string suddenly breaks. ...
... A ball is attached to a string and is swung in a circular path in a horizontal plane, as illustrated below. At point P, the string suddenly breaks. ...
30-1 Directed Reading
... b. more than 3 billion c. less than 1,000 d. more than 3 trillion _____ 35. What is the Hubble Space Telescope? a. a sun-orbiting telescope b. an Earth-orbiting telescope c. a land-based telescope d. a Mars-orbiting telescope 36. What is a star’s apparent magnitude? _________________________________ ...
... b. more than 3 billion c. less than 1,000 d. more than 3 trillion _____ 35. What is the Hubble Space Telescope? a. a sun-orbiting telescope b. an Earth-orbiting telescope c. a land-based telescope d. a Mars-orbiting telescope 36. What is a star’s apparent magnitude? _________________________________ ...
Directed Reading Section: Characteristics of Stars
... _____ 20. What two kinds of motion are associated with stars? a. inferred motion and actual motion b. actual motion and apparent motion c. actual motion and imagined motion d. inferred motion and apparent motion _____ 21. What causes the apparent motion of the stars, which we can see with the unaide ...
... _____ 20. What two kinds of motion are associated with stars? a. inferred motion and actual motion b. actual motion and apparent motion c. actual motion and imagined motion d. inferred motion and apparent motion _____ 21. What causes the apparent motion of the stars, which we can see with the unaide ...
Electromagnetic Spectrum - MIT Haystack Observatory
... -Although you can’t “see” radio waves, you see them in use everyday. - Can you brain storm a list of radio waves used around you AM and FM radio broadcasts ...
... -Although you can’t “see” radio waves, you see them in use everyday. - Can you brain storm a list of radio waves used around you AM and FM radio broadcasts ...
SPECTRAL ANALYSIS
... Expand the Graph icon. Observe that the vertical axis is Light Intensity (% max) and the horizontal axis is Actual Angular Position (rad). The spectrum shown on the graph should be similar in appearance to the spectrum shown in Figure 4. In order to measure the angle and intensity of a given spectra ...
... Expand the Graph icon. Observe that the vertical axis is Light Intensity (% max) and the horizontal axis is Actual Angular Position (rad). The spectrum shown on the graph should be similar in appearance to the spectrum shown in Figure 4. In order to measure the angle and intensity of a given spectra ...
Astronomy Unit Notes
... o A “Barred” Spiral galaxy looks similar to a spiral galaxy with a “bar” of stars through the center and the arms extend outward from the ends of the “bar”. ...
... o A “Barred” Spiral galaxy looks similar to a spiral galaxy with a “bar” of stars through the center and the arms extend outward from the ends of the “bar”. ...
Lecture 29: Ellipticals and Irregulars
... Methods of learning about what’s in galaxies: Images: use blue and red filters to measure colors and make H-R diagram from individual stars Integrated light/spectra Emission lines, particularly from neutral hydrogen and molecular gas. ...
... Methods of learning about what’s in galaxies: Images: use blue and red filters to measure colors and make H-R diagram from individual stars Integrated light/spectra Emission lines, particularly from neutral hydrogen and molecular gas. ...
The Universe - Cloudfront.net
... Elliptical Galaxies – do not have spiral arms, makes up ~60% of known galaxies, can range from round to oval Irregular Galaxies – consist mostly of younger stars, appear as clouds of stars In addition to shape and size, one of the major differences among different galaxies is the age of their stars ...
... Elliptical Galaxies – do not have spiral arms, makes up ~60% of known galaxies, can range from round to oval Irregular Galaxies – consist mostly of younger stars, appear as clouds of stars In addition to shape and size, one of the major differences among different galaxies is the age of their stars ...
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.