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Transcript
The Night Sky
Star:
A star is a massive luminous sphere of plasma, held together by its own gravity. Hot
enough to sustain nuclear fusions and thus produce radiant energy.
Other Stars:
Betelgeuse-A star 600 times our sun. A dying star likely to go super nova.
The Sun- The star at the center of our Solar System. Sustaining life on earth
Alpha Centauri-Three stars locked in their gravitational pull.
Planet:
A celestial being that orbits the sun, It is a sphere shape. It Has it has gravity and
does not orbit around another planet
Other Stars:
Uranus- the 3rd largest planet in our solar system, a gas giant.
Earth- The homeworld of the human race. 3rd planet from the sun.
Mercury- The closest planet to the sun. It has scorching temperatures.
Satellite:
A small object (moon) that orbits around a planet
Other Satellites:
Moon- The satellite that orbits around the earth
Galilean moons- The four biggest moons of Jupiter. Discovered by galileo
Titan- The largest satellite of Saturn. It is bigger than mercury.
Constellation:
A group of stars seen in the sky as a figure or design.
Other Constellations:
Southern cross: constellation seen in the southern hemisphere points south
Andromeda- A constellation discovered by the astronomer Ptolemy
Carina- A constellation that looks like the keel of a ship
Galaxy:
A large numerous collections of stars, gas giants and planets that make up a visual
universe. They are held together by each planets and stars gravity.
Other Galaxies:
Sunflower galaxy- A galaxy in a spiral form discovered in 1779
Whirlpool galaxy- A whirlpool like galaxy. thought to be about 14 million lght years
away from the milky way.
Cigar Galaxy- A galaxy shaped like a cigar also known as Messier 82. t is said to be
100 times brighter than the milky way.
Comet:
A celestial object that orbits the Sun along an elongated path. A comet that is not
near the Sun consists only of a nucleus—a solid core of frozen water, frozen gases,
and dust.
Other comets:
Halleys comet- A comet best known for it being the most well known short period
comet seen on earth. appearing every 74-75 years.
Comet Encke- A comet discovered by Encke. Known to orbit the sun every 3-4 years.
15p/Finlay- A periodic comet in the solar system discovered by William Henry
Finlay
Bibliography:
http://en.wikipedia.org/wiki/Star
http://science.yourdictionary.com/
http://en.wikipedia.org/wiki/Sun
http://www.nasa.gov/images/content/706436main_20121114-304-193Blend_M6-orig
_full.jpg
http://science.yourdictionary.com/