basic
Force that resists motion
friction
stars outlining an imaginary picture in the sky
constellation
most important star to us on Earth. a huge ball of hot gases, mostly hydrogen and helium. 93 million miles away
sun
a constellation in the Northern Hemisphere that seems to depict the figure of a lady bound in chains
Andromeda
a star system containing millions to billions of stars
galaxies
area containing no air or any other substance
vacuum
a star in the constellation ursa major that is the North Star, or Pole Star
polaris
hottest region of the sun, located in the middle
core
a group of stars in the constellation Pegasus and Andromeda
Great Square
the galaxy in which we live in
Milky Way
scientific study of stars, planets, and all other heavenly bodies.
astronomy
an imaginary line that stretches from pole to pole through the interior of the earth, around which the earth rotates
axis of rotaion
sun's visible surface surface. "sphere of light"
photosphere
the dragon
draco
a cluster of about 40 galaxies including the Milky Way
Local group
scientists who study astronomy
astronomers
an easily recognizable constellation is the Northern Hemisphere that contains the Big Dipper; also called Great Bear
Ursa Major
cool patches on the sun that are visible in special telescopes as darker blotches that slowly move across the sun
sun spots
the lion
leo
a slightly larger galaxy than Milky Way that is located in the Local Group; the most distant object that can be seen with the naked eye
Andromeda Galaxy
a blanket of air that makes the earth hospitable for living things
atmosphere
a constellation in the Northern hemisphere named after a mythical queen of Ethiopia
Cassiopeia
actual brightness of a star; how much light a star produces
absolute magnitude
the swan
cygnus
3 questions:
1. giant pinwheels spinning through the void of space
2. often shaped like and egg or football 3. a galaxy composed of stars clumped together in no definite shape
1. spiral galaxy
2. elliptical galaxy
3. irregular galaxy