Our Solar System Flashcards
(23 cards)
planets
orbit the sun, sphericle, does not share space of its orbit
geocentric theory
ancient mode of the solar system
Nicolaus Copernicus
created a solar system model
heliocentric theory
everything orbits the sun
perihelion
when a planet is closest to the sun
aphelion
when planet is furthest from the sun
dwarf plannet
orbit the sun, rigid spherical, share orbits with other bodies, are not asttelites
small solar system bodies
anything that isn’t a planet or dwarf planet
terrestrial planets
planets about the same size and density as earth
jovian planets
planets with dense gaseous atmoshperes
Meteroids
in space
meteor
in atmosphere
meteorite
reaches earths surface
asteroid
verry large medeor
Percival Lowell
built his own laboratory in search of finding another planet similiar to Neptune
Clyde Tombaugh
Discovered Pluto, numerous galaxies, comets and novas.
kuiper belt
ring of inumerable objects that extend from the orbit on Neptune to as far as 55 AU from the sun.
comet
small solar system object made of rock and different kinds of ices that orbits the sun.
bolide
large chunk of rock that makes a streak and bursts, type of meteor.
Trojans and greeks
asteroid families
moon
natural sattelite
inferior planets
closer to the sun than earth.
superior planets
further from the sun that earth.