#1
Representing the Earth as the center
Geocentric
A reaction where atomic neculei of low atomic fuse to form a heavier nucleus with the release of energy.
Nuclear Fusion
Areas that appear dark on the surface of the Sun
Sunspots
A giant planet composed mainly of hydrogen and helium
Gas Giant
Astronomical Distance
Light Year
Representing The sun as the center
Heliocentric
heavy nucleus split or go on impact with another particle, with the release of energy.
Nuclear Fission
Our universe
Milky Way
a torus-shaped region in the Solar System, located between the planets Jupiter and Mars
Asteroid Belt
Central part of a _______, once termed a dirty snowball or an icy dirtball
Nucleus of a Comet
The orbit of each planet is an ________ with the sun at one focus
Ellipse
Number of the moons in the solar system.
200 moons
Universe?
All existing matter
Solar system, galaxy, and universe
Everything in space Matter
A rock from space also known as a minor planet
Astroid
The sun and Orbiting Planets
Solar System
The outer atmosphere of the Sun.
Corona of the Sun
Terrestrial Planets
Big balls that orbit around the Sun
Planets
A natural solid object that survived the meteor phase
Meteroid
little lights in the sky that are made out of plasma
Star
A stream of charged particles released from the upper atmosphere of the Sun
Solar wind of the Sun
The trapping of the sun's warmth in a planet's lower atmosphere
Green house effect
A rock that can go around earth or hit earth
Comet
A solid natural object of a size roughly between 30 micrometers and 1 meter moving in, or coming from, interplanetary space.
Meteor