Astronomical distances and Stellar magnitudes
... Astronomical distances and stellar magnitudes 1. What is meant by a light year? 2. What is meant by an astronomical unit (AU)? 3. What is meant by a parsec (pc)? 4. What is meant by a mega parsec (Mpc)? 5. What is meant by the apparent magnitude of an astronomical object? 6. Give the approximate dis ...
... Astronomical distances and stellar magnitudes 1. What is meant by a light year? 2. What is meant by an astronomical unit (AU)? 3. What is meant by a parsec (pc)? 4. What is meant by a mega parsec (Mpc)? 5. What is meant by the apparent magnitude of an astronomical object? 6. Give the approximate dis ...
Poetry of the Stars
... Frost refers to Keat’s poem, “Bright Star” (1819); an Eremite is a hermit detached and watching, much like a muse. The star is detached from the Earth as if lofty and watchful. The star cannot tell him about the meaning of life, only what the “heavens declare”. Blackbody radiation was understood tur ...
... Frost refers to Keat’s poem, “Bright Star” (1819); an Eremite is a hermit detached and watching, much like a muse. The star is detached from the Earth as if lofty and watchful. The star cannot tell him about the meaning of life, only what the “heavens declare”. Blackbody radiation was understood tur ...
Telescopes of the Future
... times reduction in sky background. The current generation of space telescopes has already shown how these advantages can be exploited. HST records wide-field optical images typically 10 times sharper than for uncorrected ground-based telescopes and reaches far into the vacuum ultraviolet. Its capabi ...
... times reduction in sky background. The current generation of space telescopes has already shown how these advantages can be exploited. HST records wide-field optical images typically 10 times sharper than for uncorrected ground-based telescopes and reaches far into the vacuum ultraviolet. Its capabi ...
a. Recognize the physical attributes of stars in the night sky such as
... How are all stars alike? a. They are the same age. b. They are the same size. c. They are the same color. d. They are all balls of hot gases. Answer: d Stars appear as small points of light in the sky because ________________. a. they are so much dimmer than the sun b. they are so much smaller than ...
... How are all stars alike? a. They are the same age. b. They are the same size. c. They are the same color. d. They are all balls of hot gases. Answer: d Stars appear as small points of light in the sky because ________________. a. they are so much dimmer than the sun b. they are so much smaller than ...
Stars and Galaxies
... 24. Astronomers use spectrographs to study the ___________________ of stars to identify properties of stars. 25. Spectrographs break ______________________ into its component colors. 26. Dark lines are in the spectrum of a star. 27. The dark lines are caused by _____________________ in the star’s at ...
... 24. Astronomers use spectrographs to study the ___________________ of stars to identify properties of stars. 25. Spectrographs break ______________________ into its component colors. 26. Dark lines are in the spectrum of a star. 27. The dark lines are caused by _____________________ in the star’s at ...
Content Clarification for Modeling the Universe: Earth and Space
... more than a dim, fuzzy spot. • The sun is many thousands of times closer to the earth than any other star. Light from the sun takes a few minutes to reach the earth, but light from the next nearest star takes a few years to arrive. The trip to that star would take the fastest rocket thousands of yea ...
... more than a dim, fuzzy spot. • The sun is many thousands of times closer to the earth than any other star. Light from the sun takes a few minutes to reach the earth, but light from the next nearest star takes a few years to arrive. The trip to that star would take the fastest rocket thousands of yea ...
resolution, electromagnetic waves and binary stars
... we need a high level of resolution to observe them separately. The two stars in the T Tauri binary system are known as T Tau N (the northern most star) and T Tau S (the southern most star). Question 7: T Tauri is too faint to see with the naked eye, so we need telescopes to view it. Can you think of ...
... we need a high level of resolution to observe them separately. The two stars in the T Tauri binary system are known as T Tau N (the northern most star) and T Tau S (the southern most star). Question 7: T Tauri is too faint to see with the naked eye, so we need telescopes to view it. Can you think of ...
0506 - Astronomy
... The energy emitted per second by an object at different wavelengths is called its spectrum ...
... The energy emitted per second by an object at different wavelengths is called its spectrum ...
astronomy practice Answers - hhs-snc1d
... Practice Astronomy Questions Answers 1) If something were to happen to the sun, it would take __________ for us to know about it. a) 8 seconds b) 8 minutes c) 8 hours d) 8 days ...
... Practice Astronomy Questions Answers 1) If something were to happen to the sun, it would take __________ for us to know about it. a) 8 seconds b) 8 minutes c) 8 hours d) 8 days ...
Galaxies - University of Iowa Astrophysics
... • Harlow Shapley argued the Milky Way was the whole Universe • Heber Curtis argued the Milky Way was just one of many galaxies – “island universes” • Held in the Smithsonian's Museum of Natural History – the auditorium still looks the same ...
... • Harlow Shapley argued the Milky Way was the whole Universe • Heber Curtis argued the Milky Way was just one of many galaxies – “island universes” • Held in the Smithsonian's Museum of Natural History – the auditorium still looks the same ...
Document
... is the result of an enormous explosion known as the big bang. The explosion occurred 15-20 billion years ago. As the matter moved away from the explosion, gravity caused clusters to form. These clusters became the galaxies of the universe. Support comes from Red Shift and background radiation. ...
... is the result of an enormous explosion known as the big bang. The explosion occurred 15-20 billion years ago. As the matter moved away from the explosion, gravity caused clusters to form. These clusters became the galaxies of the universe. Support comes from Red Shift and background radiation. ...
AST 207 Test 2 26 October 2011
... a. (3 pts.) The proposal claims that the angles of parallactic shifts are larger on Mars. Explain why this assertion is true. The angle of the parallactic shift is , where B is the baseline and D is the distance to the star. Since Mars’ orbit is bigger, the ange is greater. b. (2 pts.) The proposal ...
... a. (3 pts.) The proposal claims that the angles of parallactic shifts are larger on Mars. Explain why this assertion is true. The angle of the parallactic shift is , where B is the baseline and D is the distance to the star. Since Mars’ orbit is bigger, the ange is greater. b. (2 pts.) The proposal ...
ATLAST 9.2: A Deployable Large Aperture UVOIR Space
... version of the Advanced Technology Large Aperture Space Telescope (ATLAST) that could be launched on an Evolved Expendable Launch Vehicle (EELV). The observatory retains significant heritage from JWST, thereby taking advantage of technologies and engineering already developed for that mission. At th ...
... version of the Advanced Technology Large Aperture Space Telescope (ATLAST) that could be launched on an Evolved Expendable Launch Vehicle (EELV). The observatory retains significant heritage from JWST, thereby taking advantage of technologies and engineering already developed for that mission. At th ...
The Reflector - Peterborough Astronomical Association
... 300 extra-solar planets orbiting distant suns. But these discoveries were made by inferred evidence. One such method is to measure the orbit of the star to detect any wobble that may be caused by the gravitational tug of a nearby planet. Another technique measures the magnitude of the star searching ...
... 300 extra-solar planets orbiting distant suns. But these discoveries were made by inferred evidence. One such method is to measure the orbit of the star to detect any wobble that may be caused by the gravitational tug of a nearby planet. Another technique measures the magnitude of the star searching ...
Astronomy Final Study Guide - With Answers!!– Name: **This will be
... Multi-stage rockets: Can travel farther, more maneuverable, and use less fuel than single-stage rockets. Space Shuttles: Are reusable – can go to space and land like an airplane. Disadvantage: can only stay in the earth’s orbit – can’t travel to the Moon or other planets. 2. What was the name of the ...
... Multi-stage rockets: Can travel farther, more maneuverable, and use less fuel than single-stage rockets. Space Shuttles: Are reusable – can go to space and land like an airplane. Disadvantage: can only stay in the earth’s orbit – can’t travel to the Moon or other planets. 2. What was the name of the ...
Kroupa - SatelliteGa.. - University of Hertfordshire
... same plane - in a kind of disk shape - and that they revolve in the same direction around the Milky Way (in the same way as planets in the Solar System revolve around the Sun). Professor Kroupa and the other physicists believe that this can only be explained if today’s satellite galaxies were creat ...
... same plane - in a kind of disk shape - and that they revolve in the same direction around the Milky Way (in the same way as planets in the Solar System revolve around the Sun). Professor Kroupa and the other physicists believe that this can only be explained if today’s satellite galaxies were creat ...
Uranus Questions
... some of the other planets; they just didn't know that they were planets. By the time of the ancient Greeks, some logically-minded people had figured out that not everything up there was a star. Stars stayed in one place, but other heavenly bodies, such as planets, moved. In this way, they discovered ...
... some of the other planets; they just didn't know that they were planets. By the time of the ancient Greeks, some logically-minded people had figured out that not everything up there was a star. Stars stayed in one place, but other heavenly bodies, such as planets, moved. In this way, they discovered ...
Lesson 2 Power Notes Outline
... When astronomers use the word luminosity, they mean the actual brightness of a star. They measure it on a scale called absolute magnitude. ...
... When astronomers use the word luminosity, they mean the actual brightness of a star. They measure it on a scale called absolute magnitude. ...
Day-6
... The Milky Way probably formed by the merger of many smaller protogalaxies. Several of these are still orbiting the Milky Way as satellite galaxies. These can contain significant amounts of gas. The gas delivered by the protogalaxies was a significant source of star formation. Evidence for ...
... The Milky Way probably formed by the merger of many smaller protogalaxies. Several of these are still orbiting the Milky Way as satellite galaxies. These can contain significant amounts of gas. The gas delivered by the protogalaxies was a significant source of star formation. Evidence for ...
Chapter 6 Telescopes: Portals of Discovery How does your eye form
... –! It uses refraction to bend parallel light rays so that they form an image. –! The image is in focus if the focal plane is at the retina. •! How do we record images? –! Cameras focus light like your eye and record the image with a detector. –! The detectors (CCDs) in digital cameras are like those ...
... –! It uses refraction to bend parallel light rays so that they form an image. –! The image is in focus if the focal plane is at the retina. •! How do we record images? –! Cameras focus light like your eye and record the image with a detector. –! The detectors (CCDs) in digital cameras are like those ...
Volume 4 (Issue 3), March 2015
... made 402 measurements; in 22 cases they found that the same meteor had been seen from each site, and its track plotted. This made it possible to determine the height of the meteor by the method of triangulation. The heights at which the meteors disappeared ranged between 15 km and 226 km; the mean b ...
... made 402 measurements; in 22 cases they found that the same meteor had been seen from each site, and its track plotted. This made it possible to determine the height of the meteor by the method of triangulation. The heights at which the meteors disappeared ranged between 15 km and 226 km; the mean b ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.