This is a galaxy.
What is a group of dust gas and stars held together by gravity.
The name of our galaxy
What is the Milky Way
Where stars are born.
What is a stellar nebula
This is the brightness of a star
What is magnitude.
When moon is growing
What is waxing
The most common type of galaxy.
What is spiral.
A galaxy with bulging disk and spiral arms.
Spiral galaxy
Provides energy for a star
What is nuclear fusion
This is the color of the hottest stars
What is blue
When moon is getting smaller.
What is waning
These are the largest galaxies.
What are spiral galaxies.
Older galaxies with little dust and interstellar matter.
What are elliptical galaxies.
This is what happens when stars die.
What is they expand cool and become red.
This is when dying massive stars explode
What is a super nova
Phase of moon when it is not visible.
What is new moon.
These galaxies are great nurseries for stars.
What is irregular galaxies.
Misshapen galaxies full of gas and dust
What are irregular galaxies
When it dies our sun dies it will become this.
A planet nebula then a white dwarf.
A contracting mass of gas which is an early stage of star formation.
What is a protostar.
When only a sliver of the moon is seen.
A crescent moon.
The name of the black hole in the center of our galaxy.
What is Sagittarius A.
Galaxies with central bulge but no spiral arms
What are lenticular galaxies.
Massive stars die and become these types of stars.
What are neutron stars
What is main sequence stars.
When moon is almost full.
What is waxing gibbous