Study Guide for Stars and the Universe Test
... Extra Credit Questions for the Stars and the Universe Test 1. What types of radiation make up the electromagnetic spectrum? 2. Define the three types of spectra. 3. How do scientists determine the elements present in a star. 4. How can scientists determine whether a star is moving toward or away fro ...
... Extra Credit Questions for the Stars and the Universe Test 1. What types of radiation make up the electromagnetic spectrum? 2. Define the three types of spectra. 3. How do scientists determine the elements present in a star. 4. How can scientists determine whether a star is moving toward or away fro ...
Test#1
... a) planets stop their forward motion in their orbit and perform a loop in the sky b) planets that orbit the Sun in a clockwise direction c) the apparent loop a planet makes in the sky when overtaken by another planet d) when planets are held back one grade instead of advancing A light year is a) the ...
... a) planets stop their forward motion in their orbit and perform a loop in the sky b) planets that orbit the Sun in a clockwise direction c) the apparent loop a planet makes in the sky when overtaken by another planet d) when planets are held back one grade instead of advancing A light year is a) the ...
Quentin Parker Lecture 1b - PowerPoint file.
... This 2MASS image, covering a field roughly 10 X 8 degrees (about the area of your fist held out at arm's length) reveals multitudes of otherwise hidden stars, penetrating all the way to the central star cluster of the Galaxy. On a dark starry night, it seems as though we can see countless stars. In ...
... This 2MASS image, covering a field roughly 10 X 8 degrees (about the area of your fist held out at arm's length) reveals multitudes of otherwise hidden stars, penetrating all the way to the central star cluster of the Galaxy. On a dark starry night, it seems as though we can see countless stars. In ...
Light and Telescope
... the back or side of the incoming light path. Eyepiece: To view and enlarge the small image produced in the focal plane of the primary optics. ...
... the back or side of the incoming light path. Eyepiece: To view and enlarge the small image produced in the focal plane of the primary optics. ...
Astronomy Part 1 - Malvern Troop 7
... a) Identify in the sky at least 10 constellations, at least four of which are in the zodiac. b) Identify at least eight conspicuous stars, five of which are of magnitude 1 or brighter. c) Make two sketches of the Big Dipper. In one sketch, show the Big Dipper's orientation in the early evening sky. ...
... a) Identify in the sky at least 10 constellations, at least four of which are in the zodiac. b) Identify at least eight conspicuous stars, five of which are of magnitude 1 or brighter. c) Make two sketches of the Big Dipper. In one sketch, show the Big Dipper's orientation in the early evening sky. ...
Astronomy Power Point
... • Uses a concave mirror to gather and focus light • A smaller mirror inside reflects this image to the eyepiece lens which magnifies it ...
... • Uses a concave mirror to gather and focus light • A smaller mirror inside reflects this image to the eyepiece lens which magnifies it ...
Astronomy 20 Homework # 1
... You are observing a star cluster which has α = 18h , as it transits through the local meridian. It is a local midnight. (a) What is the local siderial time? (b) What day of the year is it? (c) What is the approximate universal time (assume that you are in California)? ...
... You are observing a star cluster which has α = 18h , as it transits through the local meridian. It is a local midnight. (a) What is the local siderial time? (b) What day of the year is it? (c) What is the approximate universal time (assume that you are in California)? ...
Comparing Different Wavelength Pictures
... because the water vapor, carbon dioxide, and oxygen in Earth's atmosphere absorb certain wavelengths of electromagnetic radiation, other telescopes -- including those that detect ultraviolet radiation and x rays -- must be in orbit to do their work. ...
... because the water vapor, carbon dioxide, and oxygen in Earth's atmosphere absorb certain wavelengths of electromagnetic radiation, other telescopes -- including those that detect ultraviolet radiation and x rays -- must be in orbit to do their work. ...
Chapter 8, Lesson 1, pdf
... An astronomer would study objects in space with an infrared telescope to collect data not obtainable with visible light, such as the heat being produced by a sun or planet. ...
... An astronomer would study objects in space with an infrared telescope to collect data not obtainable with visible light, such as the heat being produced by a sun or planet. ...
Lesson 1, The Earth
... An astronomer would study objects in space with an infrared telescope to collect data not obtainable with visible light, such as the heat being produced by a sun or planet. ...
... An astronomer would study objects in space with an infrared telescope to collect data not obtainable with visible light, such as the heat being produced by a sun or planet. ...
angles_telescopes
... Angular yardsticks • Easy yardstick: your fist – fist held at arms’ length subtends angle of about 5 degrees ...
... Angular yardsticks • Easy yardstick: your fist – fist held at arms’ length subtends angle of about 5 degrees ...
Final Exam Space Unit Review
... 1) Stars are made of mostly H and He. Our sun (sol) is 72% hydrogen. Stars emit their own light from the high energy fusion of hydrogen atoms into helium. ...
... 1) Stars are made of mostly H and He. Our sun (sol) is 72% hydrogen. Stars emit their own light from the high energy fusion of hydrogen atoms into helium. ...
Chapter 18 review answers
... radio waves, microwaves, infrared, ultraviolet, xrays, and Gamma rays. 50. Scientists use special telescopes on the ground but primarily up in space to extract electromagnetic waves. They include ultraviolet telescopes, infrared telescopes, gamma-ray telescopes, and x-ray telescopes. They put these ...
... radio waves, microwaves, infrared, ultraviolet, xrays, and Gamma rays. 50. Scientists use special telescopes on the ground but primarily up in space to extract electromagnetic waves. They include ultraviolet telescopes, infrared telescopes, gamma-ray telescopes, and x-ray telescopes. They put these ...
Astrophysics
... Black Hole: With very massive stars, the inner core collapses but continues to do so until it becomes nothing more than a point mass. Point mass singularity, and this breaks the laws of Physics. The strength of gravity inside a black hole is so massive that nothing can escape, not even light (whic ...
... Black Hole: With very massive stars, the inner core collapses but continues to do so until it becomes nothing more than a point mass. Point mass singularity, and this breaks the laws of Physics. The strength of gravity inside a black hole is so massive that nothing can escape, not even light (whic ...
A Dart Board for the Bored An eye opening offer from the editors of
... Practically however, the testing is not easy — the secondary must be tested in monochromatic light due to refraction effects and the second focus of the primary is usually so distant that a small telescope is needed to view the test, Although I checked my primary at a distance of 31', I had no troub ...
... Practically however, the testing is not easy — the secondary must be tested in monochromatic light due to refraction effects and the second focus of the primary is usually so distant that a small telescope is needed to view the test, Although I checked my primary at a distance of 31', I had no troub ...
word document - FacStaff Home Page for CBU
... B. THE TOOLS OF THE ASTRONOMER OUTLINE: 1. The telescope a) construction (1) properties of a lens: focal length (f); diameter (d) (2) the telescope in its simplest form has two lenses b) properties of a telescope (1) magnification: M = fo/fe (2) light gathering ability: proportional to d² (3) resolv ...
... B. THE TOOLS OF THE ASTRONOMER OUTLINE: 1. The telescope a) construction (1) properties of a lens: focal length (f); diameter (d) (2) the telescope in its simplest form has two lenses b) properties of a telescope (1) magnification: M = fo/fe (2) light gathering ability: proportional to d² (3) resolv ...
Theme 5: The Rise of the Telescope:
... a mirror as the objective instead of a lens; their designs differed in the shape of the secondary mirror (concave, convex and tilted flat, respectively, as shown in figure 5.2). Newton’s design, which required only one curved face, was the most successful (though the Cassegrain design, which produce ...
... a mirror as the objective instead of a lens; their designs differed in the shape of the secondary mirror (concave, convex and tilted flat, respectively, as shown in figure 5.2). Newton’s design, which required only one curved face, was the most successful (though the Cassegrain design, which produce ...
Volcanoes and Igneous Activity Earth - Chapter 4
... • Light converges at an area called the focus • Distance between the lens and the focus is called the focal length • The eyepiece is a second lens used to examine the image directly • Have an optical defect called chromatic aberration (color distortion) ...
... • Light converges at an area called the focus • Distance between the lens and the focus is called the focal length • The eyepiece is a second lens used to examine the image directly • Have an optical defect called chromatic aberration (color distortion) ...
the Sun - My CCSD
... • Light converges at an area called the focus • Distance between the lens and the focus is called the focal length • The eyepiece is a second lens used to examine the image directly • Have an optical defect called chromatic aberration (color distortion) ...
... • Light converges at an area called the focus • Distance between the lens and the focus is called the focal length • The eyepiece is a second lens used to examine the image directly • Have an optical defect called chromatic aberration (color distortion) ...
γ The potential for intensity interferometry with -ray telescope arrays
... used in the past to do optical measurements. For example the telescopes of H.E.S.S. have been used to measure the optical light-curve of the Crab pulsar [5] and to search for ultra-fast optical transients from binary systems (Deil et al. these proceedings). Two initiatives currently exist aiming for ...
... used in the past to do optical measurements. For example the telescopes of H.E.S.S. have been used to measure the optical light-curve of the Crab pulsar [5] and to search for ultra-fast optical transients from binary systems (Deil et al. these proceedings). Two initiatives currently exist aiming for ...
The Doppler effect
... amounts of radio waves – the bright radio objects. In our solar system the Sun is the brightest of all the radio objects, and Jupiter is the second brightest. Radio astronomers wanted to identify their strong sources with objects they had seen with optical telescopes. This was impossible at first ...
... amounts of radio waves – the bright radio objects. In our solar system the Sun is the brightest of all the radio objects, and Jupiter is the second brightest. Radio astronomers wanted to identify their strong sources with objects they had seen with optical telescopes. This was impossible at first ...
The Ultimate Tool of Astronomy: Telescopes
... wavelengths carries different information: • Shorter wavelengths (X-ray, UV) carry information on very energetic phenomena (e.g. black holes, star formation) • Optical wavelengths carry information on the structures of galaxies and their motions (the assembly of the bodies of galaxies, their size) ...
... wavelengths carries different information: • Shorter wavelengths (X-ray, UV) carry information on very energetic phenomena (e.g. black holes, star formation) • Optical wavelengths carry information on the structures of galaxies and their motions (the assembly of the bodies of galaxies, their size) ...
History of the telescope
The earliest known working telescopes appeared in 1608 and are credited to Hans Lippershey. Among many others who claimed to have made the discovery were Zacharias Janssen, a spectacle-maker in Middelburg, and Jacob Metius of Alkmaar. The design of these early refracting telescopes consisted of a convex objective lens and a concave eyepiece. Galileo used this design the following year. In 1611, Johannes Kepler described how a telescope could be made with a convex objective lens and a convex eyepiece lens and by 1655 astronomers such as Christiaan Huygens were building powerful but unwieldy Keplerian telescopes with compound eyepieces. Hans Lippershey is the earliest person documented to have applied for a patent for the device.Isaac Newton is credited with building the first ""practical"" reflector in 1668 with a design that incorporated a small flat diagonal mirror to reflect the light to an eyepiece mounted on the side of the telescope. Laurent Cassegrain in 1672 described the design of a reflector with a small convex secondary mirror to reflect light through a central hole in the main mirror.The achromatic lens, which greatly reduced color aberrations in objective lenses and allowed for shorter and more functional telescopes, first appeared in a 1733 telescope made by Chester Moore Hall, who did not publicize it. John Dollond learned of Hall's invention and began producing telescopes using it in commercial quantities, starting in 1758.Important developments in reflecting telescopes were John Hadley's production of larger paraboloidal mirrors in 1721; the process of silvering glass mirrors introduced by Léon Foucault in 1857; and the adoption of long lasting aluminized coatings on reflector mirrors in 1932. Almost all of the large optical research telescopes used today are reflectors.The era of radio telescopes (along with radio astronomy) was born with Karl Guthe Jansky's serendipitous discovery of an astronomical radio source in 1931. Many types of telescopes were developed in the 20th century for a wide range of wavelengths from radio to gamma-rays.