L2 Flashcards
(9 cards)
what is the solar system
the system consisting of the sun, the planets, and other objects that revolves around it
What is an astronomical unit?
its a unit used to measure distances in and near our solar system
what does AU stand for
astronomical unit
One Astronomical unit is the average distance between _____________ & _____________.
the earth and the sun
how many miles is an AU
roughly 93 million miles
how many kilometers in 1 AU?
roughly 150 million kilometers
what are 3 things in the solar system (besides the sun)?
planets
dwarf planets
satellites
what is a dwarf planet?
an object that orbits the sun, is spherical, but does NOT dominates its orbit
what is a satellite?
and object that orbits another object