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Astronomy1st EditionAndrew Fraknoi; David Morrison; Sidney C. Wolff Publisher: OpenStaxISBN: 9781938168284
Solutions for Astronomy
From where on Earth could you observe all of the stars during the course of a year? What fraction of...
Explain, according to both geocentric and heliocentric cosmologies, why we see retrograde motion of...
In what ways did the work of Copernicus and Galileo differ from the views of the ancient Greeks and...
Explain the origin of the magnitude designation for determining the brightness of stars. Why does it...
Ursa Minor contains the pole star, Polaris, and the asterism known as the Little Dipper. From most...
How many degrees does the Sun move per day relative to the fixed stars? How many days does it take...
How many degrees does the Moon move per day relative to the fixed stars? How many days does it take...
What is an asterism? Can you name an example?
Why did Ptolemy have to introduce multiple circles of motion for the planets instead of a single,...
Why did Copernicus want to develop a completely new system for predicting planetary positions?...
What two factors made it difficult, at first, for astronomers to choose between the Copernican...
Describe a practical way to determine in which constellation the Sun is found at any time of the...
What is a constellation as astronomers define it today? What does it mean when an astronomer says,...
Draw a picture that explains why Venus goes through phases the way the Moon does, according to the...
Show with a simple diagram how the lower parts of a ship disappear first as it sails away from you...
Parallaxes of stars were not observed by ancient astronomers. How can this fact be reconciled with...
Why do you think so many people still believe in astrology and spend money on it? What psychological...
Consider three cosmological perspectives-the geocentric perspective, the heliocentric perspective,...
The north celestial pole appears at an altitude above the horizon that is equal to the observer’s...
Although the Copernican system was largely correct to place the Sun at the center of all planetary...
During a retrograde loop of Mars, would you expect Mars to be brighter than usual in the sky, about...
The Great Pyramid of Giza was constructed nearly 5000 years ago. Within the pyramid, archaeologists...
What is the altitude of the north celestial pole in the sky from your latitude? If you do not know...
If you were to drive to some city south of your current location, how would the altitude of the...
Hipparchus could have warned us that the dates associated with each of the natal astrology sun signs...
What did Galileo discover about the planet Jupiter that cast doubt on exclusive geocentrism?
Suppose Eratosthenes had found that, in Alexandria, at noon on the first day of summer, the line to...
Suppose Eratosthenes’ results for Earth’s circumference were quite accurate. If the diameter of...
Browse All Chapters of This Textbook
Chapter 2 - Observing The Sky: The Birth Of AstronomyChapter 3 - Orbits And GravityChapter 4 - Earth, Moon, And SkyChapter 5 - Radiation And SpectraChapter 6 - Astronomical InstrumentsChapter 7 - Other Worlds: An Introduction To The Solar SystemChapter 8 - Earth As A PlanetChapter 9 - Cratered WorldsChapter 10 - Earthlike Planets: Venus And MarsChapter 11 - The Giant Planets
Chapter 12 - Rings, Moons, And PlutoChapter 13 - Comets And Asteroids: Debris Of The Solar SystemChapter 14 - Cosmic Samples And The Origin Of The Solar SystemChapter 15 - The Sun: A Garden-variety StarChapter 16 - The Sun: A Nuclear PowerhouseChapter 17 - Analyzing StarlightChapter 18 - The Stars: A Celestial CensusChapter 19 - Celestial DistancesChapter 20 - Between The Stars: Gas And Dust In SpaceChapter 21 - The Birth Of Stars And The Discovery Of Planets Outside The Solar SystemChapter 22 - Stars From Adolescence To Old AgeChapter 23 - The Death Of StarsChapter 24 - Black Holes And Curved SpacetimeChapter 25 - The Milky Way GalaxyChapter 26 - GalaxiesChapter 27 - Active Galaxies, Quasars, And Supermassive Black HolesChapter 28 - The Evolution And Distribution Of GalaxiesChapter 29 - The Big BangChapter 30 - Life In The Universe
Senior Contributing Authors: Andrew Fraknoi, Foothill College; David Morrison, NASA Ames Research Center; Sidney C. Wolff, National Optical Astronomy Observatory. Astronomy is designed to meet the scope and sequence requirements of one- or two-semester introductory astronomy courses. The book begins with relevant scientific fundamentals and progresses through an exploration of the solar system, stars, galaxies, and cosmology. The Astronomy textbook builds student understanding through the use of relevant analogies, clear and non-technical explanations, and rich illustrations. Mathematics is included in a flexible manner to meet the needs of individual instructors.
Sample Solutions for this Textbook
We offer sample solutions for Astronomy homework problems. See examples below:
From where on Earth could you observe all of the stars during the course of a year? What fraction of...State Kepler’s three laws in your own words.Discuss how latitude and longitude on Earth are similar to declination and right ascension in the...What distinguishes one type of electromagnetic radiation from another? What are the main categories...What are the three basic components of a modern astronomical instrument? Describe each in one to two...Venus rotates backward and Uranus and Pluto spin about an axis tipped nearly on its side. Based on...What is the thickest interior layer of Earth? The thinnest?What is the composition of the Moon, and how does it compare to the composition of Earth? Of...List several ways that Venus, Earth, and Mars are similar, and several ways they are different.
What are the main challenges involved in sending probes to the giant planets?What are the moons of the outer planets made of, and how is their composition different from that of...Why are asteroids and comets important to our understanding of solar system history?A friend of yours who has not taken astronomy sees a meteor shower (she calls it a bunch of shooting...Describe the main differences between the composition of Earth and that of the Sun.How do we know the age of the Sun?What two factors determine how bright a star appears to be in the sky?How does the mass of the Sun compare with that of other stars in our local neighborhood?Explain how parallax measurements can be used to determine distances to stars. Why can we not make...Identify several dark nebulae in photographs in this chapter. Give the figure numbers of the...Give several reasons the Orion molecular cloud is such a useful “laboratory” for studying the stages...Compare the following stages in the lives of a human being and a star: prenatal, birth, adolescence/...How does a white dwarf differ from a neutron star? How does each form? What keeps each from...How does the equivalence principle lead us to suspect that spacetime might be curved?Explain why we see the Milky Way as a faint band of light stretching across the sky.Describe the main distinguishing features of spiral, elliptical, and irregular galaxies.Describe some differences between quasars and normal galaxies.How are distant (young) galaxies different from the galaxies that we see in the universe today?What are the basic observations about the universe that any theory of cosmology must explain?What is the Copernican principle? Make a list of scientific discoveries that confirm it.
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