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The main reason that Pluto is no longer considered a planet but is instead considered a dwarf planet
What is it is near objects not controlled by its gravity?
The brightest summer star
What is Vega?
The evidence which indicates that the sun is spinning
What is the movement of sunspots?
The only planet that takes longer to rotate on its axis than to orbit the sun
What is Venus?
One of Mar's moons which orbits closer to the planet and more quickly
What is Phobos?
The light-colored streaks surrounding a lunar crater
What are rays?
The following stars which can be found by tracing a line from Orion's belt
What is Sirius?
So nice of you
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The central portion of a comet
What is the nucleus?
The visible part of the sun
What is the photosphere?
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The feature of lenticular galaxies which can help distinguish them from spiral galaxies
What is a solid disk?
The term which describes the composition of interplanetary space
What is a vacuum?
The constellation which contains the star Alderamin
What is Cepheus?
The term which refers to the "backward" rotation of a planet on its axis
What is retrograde?
The moons which help keep a planet's rings in place
What are shepherd moons?
The type of star group which travels outside the boundaries of the Milky Way in an unusual orbit around the Galaxy's center
What is a global cluster?
Here we go again
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The type of partial eclipse which occurs when the moon is too small to cover the sun entirely, leaving a ring of light around the moon
What is an annular (solar eclipse)?
An extremely bright meteor that explodes in midair
What is a bolide?
The outermost layer of the sun's atmosphere
What is the corona?
A group of stars that are used to form a picture or represent an object
What is an asterism?
A star that is always above the horizon at a particular latitude is said to be
What is circumpolar?
The planets closest to the sun are the inner or outer planets
What is inner?
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The Hertzsprung-Russell diagram is used for classifying
What is stars?
Happy
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A comet that takes 150 years to complete one orbit is a long or short period comet
What is a short-period?
The largest known mountain in the solar system
What is Olympus Mons?
The largest planet in our solar system
What is Jupiter?
Asteroids do not have tails, asteroids are made of metal or rock, comets are found in the outer solar system, or comets move among the planets when orbiting the sun best explains the difference between an asteroid and a comet
What is asteroids are made of metal or rock?
The characteristic Uranus and Venus have in common
What is they both have a "backward" rotation?
two bad
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The reason it is impossible for the sun, moon, and all the planets to orbit the earth
What is because of the sun's gravity the planets would begin to orbit the sun?
The celestial sphere: allows identifying constellations, contains the ecliptic, represents the view from Earth, or allows measuring angles which explains why the celestial sphere is useful to astronomers
What is the celestial sphere represents the view from Earth?