stars
What are stars?
Stars are large celestial bodies that are composed of gas and that emit light
Name all the planets in our solar system.
Mercuy,Venus,Earth,Mars,Jupiter,Saturn,Uranus,and Neptune
Luminosity
What is the main sequence?
The location on the H-R diagram where most stars lie; it has a diagonal pattern
from a nebula
What type of galaxy is the Milky Way?
barrel spiral galaxy
How many dwarf planets are there?
What's absolute magnitude?
A measure of how bright a star would be if the star were located at a standard distance.
What is a supernova?
a gigantic explosion in which a massive star collapses and throws its outer layer into space
What diagram is used to find a star's brightness and temperature?
The H-R diagram
What is the nearest galaxy to the Milky Way?
Anromeda galaxy
What planet has the big red spot?
Jupiter
What is apparent magnitude?
The measure of a star's brightness seen from Earth
What is the universe?
Space and all the matter and energy in it
What causes the star's core to contract and form a white dwarf?
gravity
what are pyroclastic meterials
hot ash and bits of rock, may also be ejected into the atmosphere
What is luminosity
the actual brightness of an object such as a star