Astrophysics Flashcards
1
Q
What is a star
A
A large, celestial, incandescent (glows due to heating) body
1
Q
what is celestial
A
Beyond the Earth’s atmosphere
2
Q
What is a Planet
A
A large, spherical object that orbit stars, and has cleared its orbital path
3
Q
What is a dwarf planet
A
A large object that does not quite meet the clarification of a planet
4
Q
What is a Moon (Natural Satellite
A
A non man-made object that orbits a planet in a circular orbit.
5
Q
What is an artifiical satelite
A
A man-made object that orbits a planet
6
Q
What is an asteroid
A
A lump of rock and minerals that orbit a star.
7
Q
how do you find the orbital speed
A
(2 x pi x r)/ T
