General
HR Diagram
Stellar Life Cycle
Celestial Objects
Misc.
100

The source of every star's energy in the main part of its life cycle

Hydrogen fusion

100

Color of the hottest star

Blue

100

Life cycle stage where most of the stars in the Milky Way are

Main sequence

100

A very young star that is still gathering mass

Protostar

100

True or false: light can escape a black hole

False

200

Another name for the amount of light emitted from a star

Luminosity

200

Color of the coolest star

Red
200

The last stage of our Sun's life cycle

White dwarf
200

A powerful explosion of a massive star

Supernova

200

True or false: our sun could possibly go supernova

False

300

Speckle interferometry is used to measure this

Stellar size

300

Stars in the upper right of the HR diagram are in this grouping

Supergiants/ red giants

300
At the end of its life cycle, a massive star can become a neutron star or this

Black hole

300

This is what it is called when two stars are bound to each other

Binary
300

Which of the following two stars is hotter: 07 or M6

O7

400

How the chemical composition of stars is determined

Spectroscopy

400

Star grouping in the bottom left of the HR diagram

White dwarfs

400

The first stage of all stars before protostar

Stellar nebula

400

Collapsed core of a red supergiant

Neutron star

400

Stars that are brighter and bluer than other stars in their galaxy

Blue stragglers

500

The actual brightness of stars which takes distance into account

Absolute magnitude

500
This decreases from left to right on the HR diagram

Temperature

500

These stars have the shortest life cycle

Massive stars

500

A failed star that isn't quite a planet

Brown dwarf

500

Han Solo made the Kessel Run traveling this amount of parsecs

Twelve

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