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Characteristics of the Sun and stars
Kinds of Stars
Star Groups
Constellations
Other Space Objects
100
This star is the closest star to Earth at 93,000,000 miles away.
What is the Sun?
100
These stars are constantly changing their magnitude by brightening and dimming.
What is a variable star?
100
This prefix means two. (Think about the binary system.)
What is bi?
100
Deals with the scientific study of the stars and heavenly objects.
What is astronomy?
100
These are irregulary shaped pieces of rock , metal, and dust.
What are asteroids?
200
The brightness of a star.
What is magnitude?
200
This star's name means "new" but it isn't actually new. It will suddenly flare up and become much brighter.
What is a Nova?
200
This is a huge star system that contains millions or even billions of stars and covers many light-years.
What is a galaxy?
200
An orange-red supergiant found on Orion the Hunter.
What is Betelgeuse?
200
A rocky object in space that is smaller than an asteroid that is outside Earth's atmosphere.
What is a meteoroid?
300
How a star makes its light.
What is nuclear fusion?
300
Due to tightly packed neutrons, neutron stars can weigh a billion of these.
What is a ton?
300
This is a huge star system that contains a thousand to million stars arranged in a ball.
What is a globular cluster?
300
The inventor of the first telescope.
Who was Galileo?
300
An icy chunk of frozen gases, water, and dust that orbit the Sun over and over again.
What is a comet?
400
This gas makes up 70% of the Sun's gases.
What is hydrogen?
400
This is the brightest nova in recent history and could be seen without a telescope.
What is the Nova Cygni?
400
This contains more than 30 galaxies including the Milky Way.
What is the Local Group?
400
This cloudy obstruction is always in the way of a telescope, causing blurry pictures of the heavens.
What is the atmosphere?
400
This is a round depression on an astronomical body.
What is a crater?
500
This ancient Greek scientist developed a system to classify stars by their brightness.
Who was Hipparchus?
500
This is the result of when a star "goes nova" and spews dust and gases into space.
What is a nebula?
500
This force holds stars that are close together.
What is gravity?
500
The inventor of the reflecting telescope.
Who was Sir Isaac Newton?
500
A meteor that does not burn up in Earth's atmosphere and hits Earth's surface.
What is a meteorite?