Physics 127 Descriptive Astronomy Homework #3 Key (Chapter 2
... In all cases my reasoning is based on the information on wavelength ranges for various spectral regions given in Figure 2-6 of the textbook. The answers are (a) 2.6 μm infrared, (b) 34 m radio, (c) 0.54 nm X-ray, (d) 0.0032 nm gamma-ray, (e) 0.620 μm visible, (f) 310 nm ultraviolet, (g) ...
... In all cases my reasoning is based on the information on wavelength ranges for various spectral regions given in Figure 2-6 of the textbook. The answers are (a) 2.6 μm infrared, (b) 34 m radio, (c) 0.54 nm X-ray, (d) 0.0032 nm gamma-ray, (e) 0.620 μm visible, (f) 310 nm ultraviolet, (g) ...
Planets and Moons - Fraser Heights Chess Club
... • A galaxy is an enormous collection of gas, dust and billions of stars held together by gravity. One galaxy can have hundreds of billions of stars and be as large as 200,000 light years across. • Galaxy is derived from the Greek galaxias meaning "milky", a reference to the Milky Way. • Many galaxie ...
... • A galaxy is an enormous collection of gas, dust and billions of stars held together by gravity. One galaxy can have hundreds of billions of stars and be as large as 200,000 light years across. • Galaxy is derived from the Greek galaxias meaning "milky", a reference to the Milky Way. • Many galaxie ...
The Solar System and our Universe
... cloud are still swirling around the centre. • The particles of dust & gas may clump together, attracting other particles. • The gravity is not strong enough for nuclear reactions to ignite. • Strong enough to hold the particles together. • This is how planets are formed. • Their movement means that ...
... cloud are still swirling around the centre. • The particles of dust & gas may clump together, attracting other particles. • The gravity is not strong enough for nuclear reactions to ignite. • Strong enough to hold the particles together. • This is how planets are formed. • Their movement means that ...
Passport to the Universe Educator`s Guide Text
... the Earth and the other planets in the larger scheme of things. From out here, the sizes of and distances between the Earth, Sun, and other planets appear relatively small. On our trip, we pass three of the eight planets—Mars, Jupiter (and its moons, Io and Europa), and Saturn. We now head out for ...
... the Earth and the other planets in the larger scheme of things. From out here, the sizes of and distances between the Earth, Sun, and other planets appear relatively small. On our trip, we pass three of the eight planets—Mars, Jupiter (and its moons, Io and Europa), and Saturn. We now head out for ...
Beyond the Solar System By Patti Hutchison ANSWER THE
... Our solar system extends billions of miles from Earth. But there is still something bigger. It is the Milky Way, our galaxy. But wait, there's something even bigger than that- the universe! There are billions of galaxies in space. A galaxy is a group of stars, gas, and dust that are bound together b ...
... Our solar system extends billions of miles from Earth. But there is still something bigger. It is the Milky Way, our galaxy. But wait, there's something even bigger than that- the universe! There are billions of galaxies in space. A galaxy is a group of stars, gas, and dust that are bound together b ...
KOI-54 Claude Plymate There is a star system about 45 light years
... turns out, the system is anything but typical or uninteresting. KOI-54 has been found to be a close binary system, consisting of nearly twin A stars in highly eccentric (e = 0.83) 41.8 day orbits about their mutual center of mass. These main sequence stars reside right at the bottom of the instabili ...
... turns out, the system is anything but typical or uninteresting. KOI-54 has been found to be a close binary system, consisting of nearly twin A stars in highly eccentric (e = 0.83) 41.8 day orbits about their mutual center of mass. These main sequence stars reside right at the bottom of the instabili ...
Lecture 6
... – use high spatial resolution imaging techniques – use adaptive optics, O/IR/radio interferometry ...
... – use high spatial resolution imaging techniques – use adaptive optics, O/IR/radio interferometry ...
Answers for the HST Scavenger Hunt
... Give a definition of these kinds of stars. Hot, dense remains of a low-mass star like our Sun that has exhausted its sources of fuel for thermonuclear fusion. What is a Wolf-Rayet Star? Massive stars, which are usually are surrounded by outflowing gas clouds. How is this star type different from whi ...
... Give a definition of these kinds of stars. Hot, dense remains of a low-mass star like our Sun that has exhausted its sources of fuel for thermonuclear fusion. What is a Wolf-Rayet Star? Massive stars, which are usually are surrounded by outflowing gas clouds. How is this star type different from whi ...
Lecture 1
... time = (1.3x108s)x(1min/60s)x(1hour/60min)x(1day/24hour)x(1year/365days) time it takes for light to reach us = 4.11 years When we look at Alpha Centauri we are looking 4 years into the past! ...
... time = (1.3x108s)x(1min/60s)x(1hour/60min)x(1day/24hour)x(1year/365days) time it takes for light to reach us = 4.11 years When we look at Alpha Centauri we are looking 4 years into the past! ...
1” “Sky-Notes” of the Open University Astronomy Club. April 2005
... for CCD imagers. Leo I is located a mere third of a degree north of Regulus whose light drowns the feeble glow of the small stellar system. Leo II is located two degrees north of . It is smaller and fainter than Leo I. ...
... for CCD imagers. Leo I is located a mere third of a degree north of Regulus whose light drowns the feeble glow of the small stellar system. Leo II is located two degrees north of . It is smaller and fainter than Leo I. ...
Astronomy Unit Test Review Sheet
... 2. What is an optical telescope? What is the difference between a reflecting and a refracting telescope? What other types of telescopes do scientists use to gather information? Optical telescopes are used to see visible light from far away. Refracting uses a glass lens and a reflecting telescope use ...
... 2. What is an optical telescope? What is the difference between a reflecting and a refracting telescope? What other types of telescopes do scientists use to gather information? Optical telescopes are used to see visible light from far away. Refracting uses a glass lens and a reflecting telescope use ...
Extra Credit
... We live in a solar system in the vast Milky Way Galaxy. The Sun is our central star, orbited by nine planets, and containing more than 100 moons, millions of rocky asteroids, and billions of icy comets and stars. ...
... We live in a solar system in the vast Milky Way Galaxy. The Sun is our central star, orbited by nine planets, and containing more than 100 moons, millions of rocky asteroids, and billions of icy comets and stars. ...
ppt
... inside our galaxy or are they “external”? • Hubble settled this by measuring the distance to Andromeda – A whopping 2.5 million light years! ...
... inside our galaxy or are they “external”? • Hubble settled this by measuring the distance to Andromeda – A whopping 2.5 million light years! ...
Astronomy Universe2
... Closer galaxies are moving apart slower than those galaxies farther away. ...
... Closer galaxies are moving apart slower than those galaxies farther away. ...
Atomic Spectra - UH Institute for Astronomy
... • Adaptive optics (AO) compensate the blurring effects of the atmosphere by rapidly changing the shape of a mirror to focus the light better. ...
... • Adaptive optics (AO) compensate the blurring effects of the atmosphere by rapidly changing the shape of a mirror to focus the light better. ...
U7 Review WS KEY
... c. galactic clusters b. cosmic background radiation d. abundance of light elements (H, He and Li) The first elements that were formed in the universe were? a. hydrogen and lithium c. hydrogen and helium b. lithium and helium d. lithium and beryllium 10. I can describe tools and models used by scie ...
... c. galactic clusters b. cosmic background radiation d. abundance of light elements (H, He and Li) The first elements that were formed in the universe were? a. hydrogen and lithium c. hydrogen and helium b. lithium and helium d. lithium and beryllium 10. I can describe tools and models used by scie ...
TEKS 8.13 A, B, and C
... Objective: The student will be able to explain the use of light years to describe the distances in the universe. Students predict how long it would take to travel to various destinations then learn the real time. Student use calculators to find out how far in miles several objects are discovering th ...
... Objective: The student will be able to explain the use of light years to describe the distances in the universe. Students predict how long it would take to travel to various destinations then learn the real time. Student use calculators to find out how far in miles several objects are discovering th ...
Chapter 1 Section Misconception Truth Distances in the Universe
... the core. All the light we see comes from the photosphere; the core is well hidden below hundreds of thousands of kilometers of solar gas. The absorption lines and the continuum are both formed in the photosphere; the fact that absorption lines are detected shows that the outer part o ...
... the core. All the light we see comes from the photosphere; the core is well hidden below hundreds of thousands of kilometers of solar gas. The absorption lines and the continuum are both formed in the photosphere; the fact that absorption lines are detected shows that the outer part o ...
Grade 9 Unit 4: Space
... D. sunspot 2. What are the two most common elements found in the Sun? A. hydrogen and helium B. neon and magnesium C. oxygen and iron D. silicon and chlorine 3. Which of the following planets has only one moon? A. Earth B. Jupiter C. Mercury D. Venus 4. Which are characteristics of outer planets? A. ...
... D. sunspot 2. What are the two most common elements found in the Sun? A. hydrogen and helium B. neon and magnesium C. oxygen and iron D. silicon and chlorine 3. Which of the following planets has only one moon? A. Earth B. Jupiter C. Mercury D. Venus 4. Which are characteristics of outer planets? A. ...
Inquiry Lab: Exploring the Spectrum Intended Learning Outcomes: 1
... rays). In the case of light, the effect is difficult to demonstrate without using sophisticated instrumentation, because of the very high speed with which light moves. Therefore, while light is the wave of interest to astronomers, this activity will focus primarily on simulations to demonstrate the ...
... rays). In the case of light, the effect is difficult to demonstrate without using sophisticated instrumentation, because of the very high speed with which light moves. Therefore, while light is the wave of interest to astronomers, this activity will focus primarily on simulations to demonstrate the ...
Paradigm Shifts in Cosmology
... Unlike dark matter, dark energy spreads out over the entire universe ̶ it is so much diluted. This makes its direct detection almost impossible. For now, the only possibility to approach dark energy is precise measurements of the expansion rate of the universe. If we could determine the time variati ...
... Unlike dark matter, dark energy spreads out over the entire universe ̶ it is so much diluted. This makes its direct detection almost impossible. For now, the only possibility to approach dark energy is precise measurements of the expansion rate of the universe. If we could determine the time variati ...
Hubble Deep Field
The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky, which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 metres. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and December 28, 1995.The field is so small that only a few foreground stars in the Milky Way lie within it; thus, almost all of the 3,000 objects in the image are galaxies, some of which are among the youngest and most distant known. By revealing such large numbers of very young galaxies, the HDF has become a landmark image in the study of the early universe, with the associated scientific paper having received over 900 citations by the end of 2014.Three years after the HDF observations were taken, a region in the south celestial hemisphere was imaged in a similar way and named the Hubble Deep Field South. The similarities between the two regions strengthened the belief that the universe is uniform over large scales and that the Earth occupies a typical region in the Universe (the cosmological principle). A wider but shallower survey was also made as part of the Great Observatories Origins Deep Survey. In 2004 a deeper image, known as the Hubble Ultra-Deep Field (HUDF), was constructed from a few months of light exposure. The HUDF image was at the time the most sensitive astronomical image ever made at visible wavelengths, and it remained so until the Hubble Extreme Deep Field (XDF) was released in 2012.