I
The value which represents the brightness of a star as viewed from Earth
What is apparent magnitude?
Saturn's outermost major moon, which orbits in the opposite direction of most other moons
What is Phoebe?
A chunk of space debris that has reached Earth's surface
What is a meteorite?
The evolutionary idea which claims that the solar system formed from a cloud of gas and dust
What is the nebular hypothesis?
A scientist who proposed a system in which Earth and all other planets orbit the sun
Who is Nicolaus Copernicus?
This happens to Earth's orbital speed when Earth approaches aphelion
What is it decreases?
The number of planets known to ancient astronomers
What is five?
The primary factor that determines the brightness of average stars in the main sequence
What is temperature?
The star which is located at the north celestial pole?
What is Polaris?
The smallest type of structure formed by a group of galaxies
What is a cluster?
Is Antares, Algol, Altair, or Aldebaran a part of the Summer Triangle
What is Altair?
The first object to be classified as an asteroid
What is Ceres?
The satellite of Neptune which experiences the coldest known temperatures in the solar system
What is Triton?
The planet which travels most rapidly through its orbit
What is Mercury?
A rapidly rotating star that emits directional beams of radio waves
What is a pulsar?
GOOD or BAD
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The reason the sun's transition region can be studied only using space-based solar observations
What is the sun releases ultraviolet rays?
A star-like object believed to be made up of a large black hole surrounded by a glowing ring of gas
What is a quasar?
The type of star which is cool, small, and dim
What is a red dwarf?
The only planet to be discovered mathematically before it was seen
What is Neptune?
The distance between two objects on the celestial sphere is measured as
What is an angle?
GOOD
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The kind of view of the universe which Aristotle taught
What is geocentric?
The astronomical distance measurement which is based directly on the speed of light
What is a light year?
The two groups of asteroids that travel in Jupiter's orbit are called
What are Trojan asteroids?
A loose, asymmetrical clump that contains tens, hundreds, or thousands of stars
What is an open cluster?
Spiral and irregular galaxies commonly contain large clouds of gas and dust called
What is nebulae?
An object so massive and dense that not even light can escape its gravity
What is a black hole?
The phase in which the moon has a bulging shape and is growing larger is called
What is a waxing gibbous?
BAD
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The Jupiter moon which is the most volcanically active body in the solar system
What is Io?
The constellation which contains the Teapot asterism
What is Sagittarius?
The other property of a planet's orbit which Kepler's third law relates to the planet's average distance from the sun
What is the period?
The imaginary band in the sky containing the moon and planets
What is the zodiac?
A trail of space debris left by a comet
What is a meteoroid stream?