Astronomy 101 Test 1 Review FOUNDATIONS Scientists use the
... Radiation and all waves follow an “inverse-square law”, like gravity. For light, for example, the apparent brightness of an object decreases as the square of its distance from us increases. So a light bulb twice as far away looks four times as dim. Spreading out the light from astronomical objects i ...
... Radiation and all waves follow an “inverse-square law”, like gravity. For light, for example, the apparent brightness of an object decreases as the square of its distance from us increases. So a light bulb twice as far away looks four times as dim. Spreading out the light from astronomical objects i ...
Star Properties and Stellar Evolution
... 1. Pulsating stars – expand and contract 2. Cepheid Variables – used to find distances to galaxies that contain them 3. Eclipsing Binaries – 2 stars revolve around each other ...
... 1. Pulsating stars – expand and contract 2. Cepheid Variables – used to find distances to galaxies that contain them 3. Eclipsing Binaries – 2 stars revolve around each other ...
The Sky is Our Laboratory
... the structures of galaxies and their motions (the assembly of the bodies of galaxies, their size) •Longer wavelengths carry information on the chemical composition, physical state (gas and dust, presence, chemical elements; temperature) ...
... the structures of galaxies and their motions (the assembly of the bodies of galaxies, their size) •Longer wavelengths carry information on the chemical composition, physical state (gas and dust, presence, chemical elements; temperature) ...
Stars & Cosmology
... emitted by different elements seemed to be shifted toward the red (long-wavelength) end of the spectrum. • --pitch drops as moving source of sound travels away from you • --light shifts to red as it moves away from you ...
... emitted by different elements seemed to be shifted toward the red (long-wavelength) end of the spectrum. • --pitch drops as moving source of sound travels away from you • --light shifts to red as it moves away from you ...
Chapter 21 notes - Clinton Public Schools
... A spectrograph is a device that breaks lights into colors and produces an image of the resulting spectrum: gases in the star’s atmosphere absorb some wavelengths of light produced within that star. When the star’s light is seen through a spectrograph, each absorbed wavelength is shown as a dark line ...
... A spectrograph is a device that breaks lights into colors and produces an image of the resulting spectrum: gases in the star’s atmosphere absorb some wavelengths of light produced within that star. When the star’s light is seen through a spectrograph, each absorbed wavelength is shown as a dark line ...
London Centre - Royal Astronomical Society of Canada
... away from London’s light pollution. The site offers off road parking, and plenty of flat grassy field to set up telescopes. You can receive a guided tour of the sky from one of our members using their telescope. ...
... away from London’s light pollution. The site offers off road parking, and plenty of flat grassy field to set up telescopes. You can receive a guided tour of the sky from one of our members using their telescope. ...
Slide 1
... Distances in Space Distances in space are so large that well-known units such as kilometres are almost meaningless. ...
... Distances in Space Distances in space are so large that well-known units such as kilometres are almost meaningless. ...
Zoink Questions: Tools of Astronomy
... 48. Which electromagnetic waves have wavelengths longer than those of visible light? Give an example of how each kind of wave is used. 49. What are the differences between reflecting telescopes and refracting telescopes? ...
... 48. Which electromagnetic waves have wavelengths longer than those of visible light? Give an example of how each kind of wave is used. 49. What are the differences between reflecting telescopes and refracting telescopes? ...
Lecture 12 - Empyrean Quest Publishers
... 2. Magnification--m = F/f (F focal length of objective, f focal length of eyepiece) 3. Resolution--the angle of separation at which two objects merge and look like one. Interferometry: using two radio telescopes or more and time delays to simulate on large telescope. Usually a radio telescope. Satel ...
... 2. Magnification--m = F/f (F focal length of objective, f focal length of eyepiece) 3. Resolution--the angle of separation at which two objects merge and look like one. Interferometry: using two radio telescopes or more and time delays to simulate on large telescope. Usually a radio telescope. Satel ...
Chapter 13
... Nearby supernovae (< 50 light years) could kill many life forms on Earth through gamma radiation and high-energy particles. ...
... Nearby supernovae (< 50 light years) could kill many life forms on Earth through gamma radiation and high-energy particles. ...
Lecture 18/9 Telescopes Ulf Torkelsson 1 Optics
... out electrons from ordinary materials. However by using special materials it has been possible to construct array detectors similar to CCDs for infrared astronomy. A big infrared telescope, Spitzer, was launched a couple of years ago and the area is therefore developing quickly for the moment. Ultra ...
... out electrons from ordinary materials. However by using special materials it has been possible to construct array detectors similar to CCDs for infrared astronomy. A big infrared telescope, Spitzer, was launched a couple of years ago and the area is therefore developing quickly for the moment. Ultra ...
Test 2, Nov. 17, 2015 - Physics@Brock
... (d) [No comparison of their surface temperatures can be made.] 16. A photon can be absorbed by an atom only if the photon energy is equal to the energy difference of two atomic energy levels. (a) True. (b) False. 17. Star Betelgeuse in Orion is 120,000 times more luminous than the Sun, yet its surfa ...
... (d) [No comparison of their surface temperatures can be made.] 16. A photon can be absorbed by an atom only if the photon energy is equal to the energy difference of two atomic energy levels. (a) True. (b) False. 17. Star Betelgeuse in Orion is 120,000 times more luminous than the Sun, yet its surfa ...
Universe 8e Lecture Chapter 17 Nature of Stars
... are a measure of the star’s surface temperature. Spectral Types: Stars are classified into spectral types (subdivisions of the spectral classes O, B, A, F, G, K, and M), based on the major patterns of spectral lines in their spectra. The spectral class and type of a star is directly related to its s ...
... are a measure of the star’s surface temperature. Spectral Types: Stars are classified into spectral types (subdivisions of the spectral classes O, B, A, F, G, K, and M), based on the major patterns of spectral lines in their spectra. The spectral class and type of a star is directly related to its s ...
Mon May 27, 2013 THE VENERABLE BEDE FEAST DAY On May
... May 30th is the original date for Memorial Day, also known as Decoration Day. It’s been observed since 1868, as those who fought and died on both sides of the American Civil War, the “War Between the States,” were remembered. Oliver Wendell Holmes, in an 1884 Memorial Day address, reminded us that b ...
... May 30th is the original date for Memorial Day, also known as Decoration Day. It’s been observed since 1868, as those who fought and died on both sides of the American Civil War, the “War Between the States,” were remembered. Oliver Wendell Holmes, in an 1884 Memorial Day address, reminded us that b ...
Right Ascension / Declination
... +90 and -90, respectively) A reference point was needed from which to begin measuring longitude (Grenwich, England), and astronomers also had to decide on a point to begin measuring right ascension, so they looked to the path of the Sun. The earth is tilted 23.5 degrees in its orbit around the Sun, ...
... +90 and -90, respectively) A reference point was needed from which to begin measuring longitude (Grenwich, England), and astronomers also had to decide on a point to begin measuring right ascension, so they looked to the path of the Sun. The earth is tilted 23.5 degrees in its orbit around the Sun, ...
Space exploration - Menihek Home Page
... (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto - Dwarf Planet) Mercury and Venus are inside the Earth’s orbit around the Sun, and can only been seen setting just after sunset or rising just before sunrise. The planets outside the Earth’s orbit can be seen all night long, dep ...
... (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto - Dwarf Planet) Mercury and Venus are inside the Earth’s orbit around the Sun, and can only been seen setting just after sunset or rising just before sunrise. The planets outside the Earth’s orbit can be seen all night long, dep ...
1) Data from a Doppler analysis of the sun show a red shift on the
... All the stars measured are moving away from the Earth All the stars measured are moving toward the Earth Four of the stars measured are moving away from the Earth All of the stars are not moving relative to the Earth ...
... All the stars measured are moving away from the Earth All the stars measured are moving toward the Earth Four of the stars measured are moving away from the Earth All of the stars are not moving relative to the Earth ...
Chapter 28 Notes
... Why can’t we see Orion in June? Because of Earth’s movement around the sun Apparent Magnitude – What is it? How bright a star appears to be to an observer on Earth. ...
... Why can’t we see Orion in June? Because of Earth’s movement around the sun Apparent Magnitude – What is it? How bright a star appears to be to an observer on Earth. ...
Ordering_The_Universe
... Planet Sun’s Neighbors Local Group/Cluster Star Natural Satellite Solar System Galaxy Universe Super Cluster ...
... Planet Sun’s Neighbors Local Group/Cluster Star Natural Satellite Solar System Galaxy Universe Super Cluster ...
Document
... USING KEY TERMS The statements below are false. For each statement, replace the underlined term to make a true statement. ...
... USING KEY TERMS The statements below are false. For each statement, replace the underlined term to make a true statement. ...
Astronomy Book Test Study Guide
... State the relationship between gravity, atmosphere, and temperature changes on Earth's moon. _____ less mass means less gravity means can’t hold onto atmosphere which means more temperature variations ...
... State the relationship between gravity, atmosphere, and temperature changes on Earth's moon. _____ less mass means less gravity means can’t hold onto atmosphere which means more temperature variations ...
BOOTES-4 robotic astronomical observatory, linking - China-VO
... Burst Observer and Optical Transient Exploring System (BOOTES) • The Burst Observer and Optical Transient Exploring System (BOOTES), started in 1998 as a Spanish-Czech collaboration devoted to study optical emissions from gamma ray bursts (GRBs). • The first two BOOTES stations were located in Spai ...
... Burst Observer and Optical Transient Exploring System (BOOTES) • The Burst Observer and Optical Transient Exploring System (BOOTES), started in 1998 as a Spanish-Czech collaboration devoted to study optical emissions from gamma ray bursts (GRBs). • The first two BOOTES stations were located in Spai ...
Siderius Nuntius… Light and the Science of Astronomy
... Light is the only information we get from most astronomical objects. To understand these objects, we need to understand the physics of light and how it is produced. ...
... Light is the only information we get from most astronomical objects. To understand these objects, we need to understand the physics of light and how it is produced. ...
Telescope Principles - The Federation of Galaxy Explorers
... helps to keeps out dust, moisture and light that would interfere with forming a good image. The objective lens gathers the light, and bends or refracts it to a focus near the back of the tube. The eyepiece brings the image to your eye, and magnifies the image. Eyepieces have much shorter focal lengt ...
... helps to keeps out dust, moisture and light that would interfere with forming a good image. The objective lens gathers the light, and bends or refracts it to a focus near the back of the tube. The eyepiece brings the image to your eye, and magnifies the image. Eyepieces have much shorter focal lengt ...
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.