Looks like no one added any tags here yet for you.
perihelion
the point in a planets orbit when its closet to the sun
satellite
any object that moves around another object
moon
a natural object in space that orbits a planet
orbit
elliptical path in which an object in space moves around another object in space
planet
nearly round object in space that dominates its orbit around a star
nucleus
the small solid core of a comet
eccentricity
the shape of an orbit in regards to the distance between the foci compared to the length of the long axis
dwarf planet
a smaller, round, planet like object in space that orbits a start bit does not dominate its orbit around that star
coma
the glowing gases surrounding the core of a comet
sun
the closest star to earth and the center of our solar system
terrestrial
earth like, mostly rocky
jovian
Jupiter like, large and made mostly of gases
aphelion
the point in a planets orbit when it is farthest from the sun
nebula
cloud of dust and gas in space
astronomical unit
the average distance between the earth and sun approximately 150 kilometers
star
glowing hot ball of gases in space fueled by nuclear fusion in its core
nebular theory
describes how the solar system formed due to gravity pulling the mass of a rotating cloud of dust and gas together into a star and surrounding plants and moons
solar system
the sun the planets and their satellites and all other objects that orbit the sun
meteor shower
when a large number of relatively small, solid objects enter earths atmosphere and vaporizes as they fall to earth, typically at the same time each year as earth passes through a comets orbital path
planetesimals
small, irregularly shaped bodies that through accretion of colliding bodies, grow into planets; protoplanets
martian
having to do with mars
asteroid
small, irregular shaped rocky typically found between the orbits of mars and jupiter
comet
a small body of rock and metallic material held together by ices that orbit the sun, commonly in long, elongated orbits
meteoroid
relatively small solid object traveling through space
meteor
relatively small, solid object that enters earths atmosphere and vaporizes as it falls to earth; also known as a 'shooting star'
meteorite
relatively small, solid object that enters earths atmosphere and strikes earth before it completely vaporizes
crater
round depression on the surface of a planet or moon formed from the impact of a meteorite or similar solid object