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Astronomy
Study of
• Stars
• Planets
• Other bodies found in space
What is used
• Telescope
• Satellites
• Probes
A Star is
a large ball of gas.
Types of stars
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Blue ( Hottest)
White
Yellow (Our Sun)
Orange
Red
Polaris
• Also known as the North Star
• Located almost right above the North Pole
Life Cycle of a star
• Begins as a cloud of gas
• Core reaches 1 million C, energy is given
off
• When most of the hydrogen is used up,
becomes a red giant
• Depending on size, becomes a white
dwarf or a supernova
Constellations
• Stars when connected form a picture.
• Little Dipper
• Orion’s Belt
Circumpolar Constellations
• Constellations that appear above the poles
Galaxy
• Huge group of stars, gases, and dust
Smallest to largest
• Star
• Constellation
• Galaxy
•Universe
Year
• Time it takes for the EARTH to orbit
(revolve) around the sun once.
Black Hole
• Massive star
• Has so much gravity
• Even light doesn’t escape it.
Light Year
• Distance light travel
• in one year
• about 6 trillion miles
Planets in order from the sun
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Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
My
Very
Educated
Mother
Just
Served
Us
Nachos
Planets
• Large objects that revolve around the sun
Mercury
• Closest to the sun
• Largest differences between how hot and
cold it gets.
Venus
• Longer day than year
• Hottest planet
Mars
• Known as the Red Planet
• Had liquid water on it at one time
Jupiter
• Largest planet
• Violent atmosphere
Saturn
• Most moons
• Rings
• Could float
Uranus
• Tilted on its axis more than any other
planet
• Greenish color due to methane in the air
Neptune
• Farthest away from the sun
• Has a great dark spot from a rotating
storm