Chapter 4 Quiz AST 1002
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School
Indian River State College *
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Course
1002
Subject
Astronomy
Date
Dec 6, 2023
Type
Pages
3
Uploaded by BrigadierResolveWhale40
The "father of astronomy," he successfully predicted a solar eclipse that brought an end to a war between the Lydians and the Medes:
Thales
He taught that earth was a planet that rotated on its axis and revolved about the sun:
Aristarchus
This imaginary globe has stars attached to its surface:
celestial sphere
He thought circles and spheres were perfect and promoted the five regular solids; he also said the universe contained nested crystal spheres which held the planets, and spoke of "the music of the spheres."
Pythagoras
When an object appears to change position against the background of more distant objects due to a change in the location of an observer, we call this phenomenon---
Parallax
This Greek word means, "wanderer."
Planetes
When a planet seems to move backward (east-west) against the background of stars, its motion is
Retrograde
This Alexandrian librarian correctly measured the Earth's circumference:
Eratosthenes
You are standing on a round asteroid. The sun is at your zenith. At the same time, another astronaut 50 miles south of you tells you he sees the sun on the horizon. What is the circumference of this asteroid?
200 miles
He catalogued stars and constellations, devised a stellar magnitude scale and discovered precession.
Hipparchus
The faintest star visible to the unaided human eye is _____ magnitude:
6
th
Stars brighter than a first or zero-magnitude star are identified by ---
negative numbers
Which planet is identified with the symbol ?
Saturn
When the planet Venus is directly between the earth and the sun:
inferior conjunction
Which of the following is impossible?
Mars at inferior conjunction
Venus at quadrature
Mars at inferior conjunction
Mercury at opposition
all of the preceding
all of the preceding
Aristotle thought that the earth was ______ and _____ the moon.
round; bigger than
Aristotle cited this as "proof" the earth did not revolve in an orbit about the sun:
lack of parallax in the starfield throughout the year
Smaller circle attached to the deferent of a planet, needed to explain retrograde planetary motion:
Epicycle
The ___ model, also known as the _______ model, places an immovable earth at the center of the universe.
geocentric; Ptolemaic
The model of the universe set forth in Ptolemy's "Syntaxis" ---
was geocentric.
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