A
Big Dipper, Little Dipper, Tarus the Bull, Draco the Dragon, Cynus the Swan, Aquarius, Ursa Major, Cancer the Crab, Hercules, Sagetarius, Corvis
What is the name of the galaxy that we live in?
Milky Way
What is an astrologer
One who believes that the positions of the stars and planets cause events on earth or influence people to do certain things.
Nebula are clouds made of what 2 substances
Dust and gases
What are 2 kinds of magnitude?
Apperent (how bright a star appears)
Absolute (how bright a star really is)
The brightness of stars depends on 3 things. What are they?
distance from the Earth (how far)
size (how big)
temperature (how hot)
Circumsteller are clouds of dust centered where?
Around stars
Intersteller are clouds of dust centered where?
Between the stars
The solar system is made up of what?
A star and a group of planets and asteroids that orbit around it
many stars bound together
What are binary stars?
Hint: Bi means two
Two stars that revolve around each other
The 3 main sizes of stars are:
Dwarf (average or small)
Giant (large)
Supergiant (huge)
The galaxy is a collection of what 3 things:
Stars, dust, and gases held together by gravity
What is the zodiac
12 constellations that circle the sun
What are patterns formed by groups of stars?
constellations
An astronomer studies 3 things. What are they?
Stars, planets, and heavenly bodies
Why do constellations appear in different parts of the sky at different times of the year?
The earth rotates and revolves around the sun giving the appearance that stars move.
Collapsed stars may become:
white dwarf stars
radio stars
black holes
Describe "Nova" and "Supernova" stars
Nova - exploding stars
Supernova - unusually bright, sometimes brighter than a galaxy
What is an intense field of GRAVITY that may occur after the Collapse of a massive star. The gravity is so strong that light is pulled into it, making it invisible.
Black hole
Alpha Centauri
Effect used by astronomers to figure distances between stars or between the earth and stars
parallax
Kind of angle that is needed to measure distances between stars
right
What are the 3 shapes of galaxies and describe them?
Spiral (shaped like a pinwheel)
Elliptical (shaped like a disc)
Starburst (ball of stars nearly the same density throughout)
Stars that don't have a constant brightness are what kind of stars?
Variable