H-R Diagram
Astronomers measure the temperature of stars using this unit.
What is a Kelvin?
This theoretical stellar remnant represents the Sun’s final stage after billions of years.
What is a Black Dwarf?
This theory suggests the universe began around 14 billion years ago from a single, extremely dense, and hot point that rapidly expanded.
What is the Big Bang Theory?
The Milky Way belongs to this specific type of spiral galaxy distinguished by a central bar.
What is a Barred Spiral Galaxy?
The Sun is currently in this stage of stellar evolution, also known as its third stage.
What is a main sequence star.
This astronomical chart plots the luminosity or absolute magnitude of stars against their effective temperatures and spectral types.
What is the Hertzsprung-Russell Diagram?
In its fourth stage of stellar evolution, the Sun will expand into this type of star.
What are Red Giants?
This is one of the two most abundant elements in the universe, primarily formed during the early moments after the Big Bang
What is hydrogen (or helium)?
Irregular, elliptical, and spiral are these three main classifications used by astronomers.
What are the three types of Galaxies?
This is the center of our solar system, made mostly of hydrogen and helium, and classified as a medium-sized star.
What is the Sun?
Found in the lower-left, these stars are very hot but dim because they are small, dense stellar remnants.
What are White Dwarfs?
This giant cloud of gas and dust is the birthplace of new stars.
What is a Nebula?
The system of all matter, energy, and space
What is the Universe
The force responsible for keeping all the stars, gas, and dust within a galaxy
What is gravity?
In astronomy, this term describes the total amount of energy a star emits per unit of time.
What is luminosity?