Meanings
A huge cloud of gas and dust where stars are born.
What is a nebula?
The last (not theoretical) stage of an average size star
what is a white dwarf?
Most stars belong to this group on the HR diagram.
What is the main sequence category?
All stars use this element as fuel
what is Hydrogen
We live in the _ _ galaxy.
MILKY WAY
What are stars on the HR diagram arranged by
what are temperature and luminosityv(brightness)?
The 2 possible final stages of a high mass star
what is a black hole or neutron star?
On the HR diagram, this group of stars are very hot but have a low luminosity
What are white dwarfs?
What force drives the start of the life of a star?
what is GRAVITY
On the HR diagram, the sun is this color.
What is yellow?
The higher up a star is on the HR diagram, the _____________ it is.
Brighter
Red giants are _HIGH/LOW__ in temperature, and _HIGH/LOW_ in brightness.
What is LOW temperature and HIGH brightness.
The coolest stars are this color on the HR diagram.
What is red?
White dwarfs are located _HIGH / LOW_ on the HR Diagram because they are _BRIGHT / DIM_.
answers: LOW and DIM
The 3 types of galaxies are __, __, __ and the milky way is ____.
What is spiral, elliptical, and irregular; and spiral?
A massive star exploding
What is a supernova?
the earliest stage of a star's life that forms in the nebula
What is a protostar?
This group of stars have high luminosity but cool temperatures.
What are red super giants?
Describe the location of our solar system in our galaxy
On the Orion arm of the Milky way about 2/3 out from the center.
The reason why black holes are not located on the HR Diagram
What is because they give off no light
The MOST massive stars will become this celestial object that is so massive, even light cannot escape.
What is a BLACK HOLE?
Increases from right to left on the HR diagram
what is temperature ?
The hottest stars on the HR diagram are _?_ color.
What is BLUE?
Another word for brightness is _.
(hint: measured on the Y axis)
Luminosity or Magnitude
A nebula is _____ than a galaxy
What is smaller?